This workflow confirms and quantifies 31 drugs of abuse in oral fluid (including THC) in a 4.5‑minute LC run on the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1149">Thermo Scientific Stellar mass spectrometer</a> using full scan + targeted MS2 (tMS2) with both HCD and CID fragmentation. With 1 µL injection and 0.1% formic acid in water/methanol mobile phases, the method supports ~13 samples/hour (up to ~320/day continuous operation) while maintaining confirmation performance via ion ratios.<blockquote><h5>Method at a glance</h5><ul><li>What matrix is tested? Oral fluid</li><li>How many drugs? 31 drugs of abuse (panel includes THC)</li><li>Run time? 4.5 minutes</li><li>Throughput? ~13 samples/hour → up to ~320 samples/day (24‑hour operation)</li><li>Injection volume? 1 µL</li><li>Mobile phases? 0.1% formic acid in water (A) and 0.1% formic acid in methanol (B)</li><li>MS acquisition? Full scan + targeted MS2 (tMS2)</li><li>Fragmentation? Compound‑optimized HCD and CID in the same targeted list</li><li>Confirmation strategy? Ion ratios with ±20% tolerance (typical confirmatory approach)</li></ul></blockquote><h3>Why oral fluid—and why speed matters</h3>Oral fluid is attractive for clinical and forensic toxicology because collection is simple and the matrix aligns well with high‑volume workflows (workplace/occupational, roadside, and other settings). The challenge is building a method that’s simultaneously:<ul><li>Broad enough for today’s drug panels</li><li>Sensitive enough to reach required cutoffs</li><li>Fast enough to keep sample queues under control</li><li>Confirmation‑ready (consistent product ions and ion ratios)</li></ul>A 4.5‑minute method is a practical lever here: compress runtime, raise throughput, and still keep confirmation quality by optimizing MS/MS conditions per compound.<h3>The LC method</h3>A short, efficient separation is the foundation of the workflow:<ul><li>UHPLC system: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/744">Thermo Scientific Vanquish Horizon UHPLC</a></li><li>Column: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/424">Thermo Scientific Accucore Biphenyl</a>, 50 × 2.1 mm, 2.6 µm</li><li>Mobile phase A: 0.1% formic acid in water</li><li>Mobile phase B: 0.1% formic acid in methanol</li><li>Injection volume: 1 µL</li><li>Gradient runtime: 4.5 minutes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_fd3f3e8ea4.jpg" alt="Thermo Fisher Scientific: 4.5-Minute Oral Fluid LC MS Method to Detect 31 Drugs of Abuse Using Stellar MS: Figure 1: Thermo Scientific Vanquish Horizon UHPLC system." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_fd3f3e8ea4.jpg 120w," sizes="100vw" width="747" height="969"><h3>The MS method (Full scan + targeted MS2 with HCD + CID)</h3><h5>Acquisition approach</h5>This method uses a “two‑layer” strategy for quantitation + confirmation:<ol><li>Full scan (broad coverage, context, quantitative support)</li><li>Targeted MS2 (tMS2) (confirmation‑focused product ions, ion ratios)</li></ol><h5>The key differentiator: HCD and CID in one targeted list</h5>Instead of forcing every analyte into a single fragmentation style, the method uses both:<ul><li>HCD (beam‑type fragmentation)</li><li>CID (resonance‑type fragmentation)</li></ul><h5>Why that improves method development:</h5>Drugs of abuse span multiple chemistries. A single collision approach often works “okay” for most compounds—but one or two analytes can become persistent problems (weak qualifiers, unstable ion ratios, excess noise). Having both HCD and CID available in one method lets you optimize per compound and move faster.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_3_e4a95651a2.jpg" alt="Thermo Fisher Scientific: 4.5-Minute Oral Fluid LC MS Method to Detect 31 Drugs of Abuse Using Stellar MS: Figure 2: Thermo Scientific Stellar mass spectrometer." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_3_e4a95651a2.jpg 245w," sizes="100vw" width="645" height="377"><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_5_88276eec6a.jpg" alt="Thermo Fisher Scientific: 4.5-Minute Oral Fluid LC MS Method to Detect 31 Drugs of Abuse Using Stellar MS: Figure 3: Full scan &amp; targeted MS2 methods, HCD and collision energies used." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_4_5_Minute_Oral_Fluid_LC_MS_Method_to_Detect_31_Drugs_of_Abuse_Using_Stellar_MS_5_88276eec6a.jpg 245w," sizes="100vw" width="768" height="279"><h3>Why CID + HCD flexibility improves confirmation</h3>In this workflow, HCD performed well for most compounds. But for buprenorphine, HCD produced one dominant product ion with additional low m/z noise and noticeable residual precursor. Using CID generated two high‑intensity product ions and delivered consistent ion ratios across the calibration range.When your confirmation hinges on stable ion ratios, the ability to switch fragmentation mode (not just collision energy) is a method‑development advantage—especially for “problem analytes.”<h3>Controllable ionization</h3>Oral fluid methods often deal with limited sample volume and matrix effects. This workflow pairs low injection volume with ionization control using the Thermo Scientific OptaMax Plus HESI source.<ul><li>The OptaMax Plus HESI source supports high probe temperature capability (up to 650 °C).</li><li>In this study, a vaporizer temperature of 500 °C was used to help achieve sensitivity and improve relative peak areas across drugs of abuse.</li></ul>Why this matters: If you’re injecting only 1 µL, ionization stability and efficiency can be the difference between “meets cutoff” and “misses at LOQ.”<h3>Sample preparation</h3>Oral fluid panels become more challenging when THC is included because most drugs of abuse are basic, while THC is largely neutral, and that can stress extraction chemistry.In this workflow, oral fluid calibrators and samples were extracted using a mixed‑mode approach designed to recover THC alongside other drugs:<ul><li>Calibrators prepared across eight levels (broad dynamic range)</li><li>Extraction performed using mixed‑mode chemistry tips (SCX/WAX) in a dispersive SPE‑style workflow</li><li>Steps automated on a liquid handling platform to support high‑throughput consistency</li><li>Samples dried and reconstituted prior to LC‑MS analysis</li><li>Only 1 µL injected per run</li></ul>Even if your lab uses different automation or consumables, the method structure (fast LC + full scan + targeted MS2 with dual fragmentation) transfers well.<blockquote><h5>Throughput math</h5><ul><li>4.5 minutes per injection → 60 / 4.5 = 13.3 injections/hour</li><li>That’s ~13 samples/hour in typical phrasing</li><li>Over 24 hours: 13.3 × 24 = ~320 samples/day (continuous operation)</li></ul>If you run a single shift, just scale accordingly (e.g., ~106/day for an 8‑hour shift, excluding QC and overhead).</blockquote><h3>Performance summary</h3><h5>Sensitivity and linearity</h5><ul><li>Linearity from LOQs as low as 0.25 ng/mL up to 1,000 ng/mL (panel-dependent)</li><li>For THC specifically: LOQ at 1 ng/mL, with a dynamic range extending to 1,000 ng/mL in this evaluation</li><li>Across the panel, LOQs were reported as lower than recommended confirmation cutoffs referenced in SAMHSA guidance and NSC Tier 1 cutoffs (study-specific outcome)</li></ul><h5>Confirmation via ion ratios</h5><ul><li>Ion ratios evaluated using ±20% tolerance (typical confirmatory acceptance framework)</li><li>The workflow produced consistent ion ratios across calibrator levels for the full panel in this evaluation</li></ul><h5>Case sample comparison (real-world relevance)</h5>When compared against a validated triple quadrupole method for case study samples, the Stellar MS workflow:<ul><li>Confirmed the positive hits observed by the reference method</li><li>Reported a few additional positives for select analytes, attributed to lower LOQs</li><li>Highlighted an operational efficiency point: 1 µL injection in this method versus 20 µL injection in the compared method</li></ul><h3>FAQ</h3><div><div><ol><li>How long does the LC‑MS run take for the 31‑drug oral fluid panel? 4.5 minutes per injection using a short UHPLC gradient. &nbsp;</li><li>How many drugs of abuse can Stellar MS detect in this workflow? 31 drugs of abuse, including THC, using full scan + targeted MS2. &nbsp;</li><li>What MS/MS approach is used? A combined strategy: full scan plus targeted MS2 (tMS2) for confirmation. &nbsp;</li><li>Why use both HCD and CID? Because some analytes fragment better—and produce more stable confirmation ions/ion ratios—under one mode versus the other. Using both increases flexibility and speeds method optimization. &nbsp;</li><li>What injection volume is used? 1 µL of extracted sample. &nbsp;</li><li>What mobile phases are used? 0.1% formic acid in water (A) and 0.1% formic acid in methanol (B). &nbsp;</li><li>How many samples can you run per day? At 4.5 minutes/injection, throughput is ~13 samples/hour or up to ~320/day with continuous operation (actual throughput depends on QC and scheduling).</li></ol></div></div><h3>What makes this workflow “easy” to develop on Stellar MS</h3>Here’s the short list of features that directly reduce method‑development friction:<ul><li>HCD or CID in one method → optimize per compound, not compromise</li><li>Fast MS2 acquisition speeds (up to 140 Hz for MS2) → more data points across narrow peaks</li><li>Fast polarity switching (true 5 ms) → supports mixed panels efficiently</li><li>Adaptive RT (real‑time retention time window adjustment) → helps reduce reinjections when retention times drift (e.g., column aging) and supports method transfer from longer to shorter gradients</li><li>OptaMax Plus HESI source control → supports sensitivity at low injection volumes</li></ul>If you’re building a fast oral fluid confirmation workflow—or updating an existing DOA panel—this 4.5‑minute method shows how Stellar MS can combine speed, confirmation-ready MS2, and fragmentation flexibility (HCD + CID) in a single targeted workflow. Reach out to learn how to adapt the targeted list, collision settings, and scheduling strategy to your lab’s cutoffs and throughput goals.<blockquote>Visit us on&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/showcase/72003132/admin/dashboard/">LinkedIn:</a>&nbsp;#MassSpectrometry #OralFluid #DrugsOfAbuse #MethodDevelopment #HighThroughput</blockquote>

4.5-Minute Oral Fluid LC MS Method to Detect 31 Drugs of Abuse Using Stellar MS

In our <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/7741">previous article, we introduced the main types of detectors used in HPLC</a>. This time, we take a closer look at the performance characteristics of LC detectors and the specifications that should be considered when assessing whether a detector is suitable for a particular chromatographic separation. We will also compare the most common detector technologies and provide some practical guidance for choosing the right option for a specific application.<h3>What Defines an Ideal HPLC Detector?</h3>With such a wide variety of HPLC detectors available, an obvious question arises: why is there no single detector that works for every application? The simple answer is that no detector can satisfy every analytical requirement at the same time. Nevertheless, most detector designs aim to achieve a similar set of desirable properties.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_1_Detector_requirements_334605c913.webp" alt="KNAUER: Figure 1 - Detector requirements" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_1_Detector_requirements_334605c913.webp 245w," sizes="100vw" width="1024" height="384"><h4>1. High Sensitivity – Detecting Very Small Amounts</h4>An ideal detector should be capable of measuring very low quantities of analyte, often in the nanogram or even picogram range. High sensitivity leads to lower limits of detection (LOD), can reduce sample preparation requirements, and is particularly valuable for applications such as impurity analysis or pharmacokinetic studies.Some detector technologies, including fluorescence detection (FLD), electrochemical detection (ECD), and mass spectrometry (MS), can achieve extremely high sensitivity. However, this level of performance is often limited to specific classes of compounds.<h4>2. Good Selectivity or Broad Applicability – Knowing What Is Being Detected</h4>Selectivity describes how effectively a detector responds to the target analyte while minimizing interference from the sample matrix or mobile phase.Depending on the analytical task, a detector may need to be highly selective, responding only to compounds with specific characteristics such as fluorescence or electrochemical activity. In other cases, broader applicability may be more important, allowing a wide range of compounds to be detected regardless of their molecular structure.<h4>3. Linear Response and Broad Dynamic Range – Reliable Quantification</h4>A good detector should provide a linear response across a sufficiently wide concentration range. This makes it possible to accurately quantify both major components and trace impurities within the same analytical method.A broad linear range simplifies calibration and improves confidence in quantitative results. Detector response should also remain highly reproducible from one injection to another.<h4>4. Compatibility with HPLC Conditions – Fitting the Chromatographic Method</h4>An ideal detector should be compatible with both gradient and isocratic elution, commonly used mobile phases and additives, typical flow rates, and standard HPLC operating temperatures.Poor compatibility may restrict method flexibility or force compromises in chromatographic performance. Some detectors provide excellent analytical performance but only under specific operating conditions, making them less suitable for certain methods.<h4>5. Stability and Low Noise – Distinguishing Signal from Background</h4>A stable baseline with minimal noise and drift improves the signal-to-noise ratio and overall data quality. This becomes especially important in long chromatographic runs, gradient methods, and trace-level analysis.Lower baseline noise makes weak analyte signals easier to distinguish and directly contributes to improved detection limits.<h4>6. Robustness, Ease of Use, and Maintenance – Supporting Routine Laboratory Work</h4>For day-to-day use, a detector should be reliable over long sequences, straightforward to operate, and require as little maintenance as possible.In routine laboratories, robustness and ease of operation can be just as important as analytical performance. Simple troubleshooting, low maintenance requirements, and limited consumable costs are major advantages, particularly in high-throughput environments.<h3>The Reality: No Detector Offers Everything</h3>Since no detector fulfils all these requirements perfectly, detector selection is inevitably a compromise between sensitivity, selectivity, universality, robustness, operating flexibility, and cost.For this reason, multi-detector configurations are increasingly common in modern HPLC systems. Combinations such as UV + CAD or UV + MS make it possible to benefit from complementary detection principles within a single analytical workflow.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Table_1_Comparison_of_commonly_used_HPLC_detector_classes_d74817b0f0.jpg" alt="KNAUER: Table 1 - Comparison of commonly used HPLC detector classes." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Table_1_Comparison_of_commonly_used_HPLC_detector_classes_d74817b0f0.jpg 113w," sizes="100vw" width="806" height="1115"><h3>Critical Performance Parameters of HPLC Detectors</h3><h4>Data Sampling Rate</h4><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_2_Example_for_too_less_and_too_high_data_sampling_rate_741a53edc6.webp" alt="KNAUER: Figure 2 - Example for too less and too high data sampling rate." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_2_Example_for_too_less_and_too_high_data_sampling_rate_741a53edc6.webp 245w," sizes="100vw" width="1024" height="410">The data acquisition rate, also known as the sampling rate, is one of the most important detector settings in HPLC. It describes how many data points are recorded per second and directly influences peak representation, peak shape, area precision, and baseline noise.The higher the sampling rate, the more data points are collected. The detector processes the measurements collected over a defined time interval and averages them, and these averaged points are then used to construct the chromatogram.At a data rate of 5 Hz, for example, five data points are acquired every second. If too few points are collected across a chromatographic peak, the resulting peak can appear jagged, poorly defined, and analytically unreliable, as illustrated on the left side of Figure 2.At the other extreme, a setting such as 100 Hz records 100 points each second, which is often unnecessarily high for conventional HPLC. The optimum sampling rate mainly depends on chromatographic peak width.For most standard HPLC applications, a data rate of approximately 10 to 20 Hz is sufficient to generate a smooth and symmetrical Gaussian peak.One consequence of using an excessively high acquisition rate is increased baseline noise. Statistically, the noise of the system depends on the number of data points used for averaging and decreases with the square root of the number of averaged measurements.Selecting an appropriate sampling rate is therefore a balance between collecting enough points to describe the chromatographic peak accurately and avoiding unnecessary noise.<h4>Noise and Drift</h4><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_3_Baseline_noise_and_drift_685652e641.webp" alt="KNAUER: Figure 3 - Baseline noise and drift" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_3_Baseline_noise_and_drift_685652e641.webp 245w," sizes="100vw" width="1024" height="400">What exactly is baseline noise? In simple terms, it represents the short-term fluctuations of the detector baseline over a defined period and is expressed in the units appropriate for the particular detector.Baseline noise is typically determined from the peak-to-peak variation of the detector signal while the mobile phase passes through the system.All HPLC detectors exhibit a certain level of noise. Potential sources include:<ul><li>electronic noise,</li><li>detector cell noise,</li><li>detector instability,</li><li>temperature fluctuations,</li><li>mobile-phase effects,</li><li>and other environmental or instrumental influences.</li></ul>Noise directly affects detector sensitivity because it determines the signal-to-noise ratio (S/N).A chromatographic peak is generally considered reliably detectable when its height is at least three times greater than the calculated baseline noise. This relationship is commonly used to define the limit of detection (LOD).The limit of quantification (LOQ) requires a stronger signal and is typically defined as approximately ten times the baseline noise.Another important parameter affecting sensitivity is baseline drift. Drift reflects the gradual change in detector response over time and therefore provides useful information about long-term detector stability.It is helpful to distinguish between short-term peak-to-peak noise and longer-term baseline drift over a defined time interval. Drift can be described as the average slope or change of the baseline within a specific period.Excessive drift may reduce sensitivity and complicate chromatographic peak integration.Short-term baseline instability can be influenced by contamination or deterioration of detector components, while long-term drift is often related to temperature stability, detector equilibration, or changes occurring within the analytical system.<h3>How to Select the Right HPLC Detector</h3>There is no universally “best” HPLC detector. The correct detector is simply the one that best matches the analytical task.When selecting a detector, several practical questions can help narrow the choice.<h4>1. Does the analyte absorb UV light or fluoresce?</h4>If the answer is yes, optical detectors such as UV/VIS or FLD are often the simplest and most effective options.UV/VIS detection is widely applicable to compounds containing suitable chromophores, while fluorescence detection provides particularly high sensitivity and selectivity for naturally fluorescent or derivatized analytes.<h4>2. Does the analyte lack a chromophore?</h4>If UV absorption is weak or absent, detectors such as RID, ELSD, or CAD may provide a more appropriate solution.These detector types are useful for compounds such as sugars, lipids, polymers, and other analytes that are difficult to monitor by conventional UV detection.<h4>3. Is structural information required?</h4>If structural information is important, mass spectrometry is usually the strongest choice.MS provides mass-to-charge information and, when tandem mass spectrometry is used, fragmentation data that can support compound identification and structural characterization.<h4>4. Is extremely high sensitivity necessary?</h4>For applications requiring very low detection limits, electrochemical detection or mass spectrometry may be the most suitable options.The exact choice depends on the chemical properties of the analyte and the required degree of selectivity.<h4>5. Are macromolecules such as proteins or polymers being investigated?</h4>For characterization of macromolecules, MALS and viscometry can provide valuable information about molecular weight, molecular size, branching, and aggregation.These techniques are especially powerful when combined with size-exclusion chromatography and can provide information that is not based solely on column elution behavior.For a more detailed discussion of detector selection, see the KNAUER blog article “The way you look at it – A comprehensive guide for selecting the appropriate HPLC detector.”Choosing the detection technology based on analyte properties, required sensitivity, chromatographic conditions, and the type of information needed is essential for obtaining reliable and meaningful HPLC results.<h3>Final Thoughts</h3>Understanding the desired characteristics and key performance parameters of HPLC detectors helps explain why different detector technologies are suited to different applications.No single detector can provide maximum sensitivity, selectivity, universality, robustness, flexibility, and low operating cost simultaneously. Recognizing these trade-offs provides a practical framework for selecting the most appropriate detector for a given chromatographic method.Parameters such as data sampling rate, baseline noise, drift, dynamic range, and compatibility with chromatographic conditions are just as important as the underlying detection principle itself.In the next articles of this series, we will take a closer look at the individual HPLC detection technologies, beginning with the most widely used optical detection method: UV/VIS detection.

Seeing is Believing – Detection Made Easy Part 2: Detector Characteristics

Our Library never stops expanding. What are the most recent contributions to LabRulezLCMS Library in the week of 17th August 2026? Check out new documents from the field of liquid phase, especially HPLC and LC/MS techniques!<blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library">SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT LCMS AND RELATED TECHNIQUES</a></blockquote><blockquote>👉 Need info about different analytical techniques? Peek into <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library">LabRulezGCMS</a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library">LabRulezICPMS</a> libraries.</blockquote>This week we bring you posters by Agilent Technologies / ASMS, Thermo Fisher Scientific / ASMS and Shimadzu / ASMS and application note by Waters Corporation!<h3>1. Agilent Technologies / ASMS: Quantitation of N-Nitroso Duloxetine N-Nitrosamine Drug Substance Related Impurities (NDSRI) in API and Formulation by 6475 LC/TQ</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/po_drug_impurities_lc_tq_tp_402_asms_2026_en_agilent_b933b9bddf.pdf">Full PDF for download</a></li></ul>Nitrosamine impurities are nitroso derivatives where the nitroso group is attached to an amine. The active pharmaceutical ingredient (API) derived from a class of nitrosamines are known as N-nitrosamine drugsubstance-related impurities (NDSRI). Nitrosamine impurities in APIs and drug products pose safety concerns, even in small quantities, and thus are a major concern for drug makers [1].&nbsp;Analytical methods must be sufficiently sensitive to quantify the nitrosamine of interest at levels as low as 10% of the specification limit and, where feasible, down to ≤5% of the specification limit, for the determination of the limit of detection. LC/MS/MS is an inherently selective and highly sensitive analytical technique that is well suited for the identification and quantification of trace-level impurities at extremely low concentrations. Consequently, LC/MS/MS has been widely adopted within the pharmaceutical industry, particularly for nitrosamine analysis [2-3].&nbsp;Therefore, manufacturers must develop and qualify a dedicated analytical method that is appropriate for the specific sample matrix and targeted NDSRIs. An LC/MS/MS method based on multiple reaction monitoring (MRM) was developed for the detection and quantification of the N-nitroso duloxetine NDSRI impurity over a concentration range of 0.5 to 40 ppb (absolute standard concentration), using an atmospheric pressure chemical ionization (APCI) source on an Agilent 6475A LC/TQ instrument.<h4>Experimental</h4><ul><li>MS: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=10&amp;search=6475">6475 Triple Quadrupole LC/MS System</a></li><li>Column: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=10&amp;search=Poroshell+HPH+C18">Poroshell HPH C18</a> (4.6*150mm, 2.7µm)</li></ul><h4>Conclusions</h4><ul><li>A highly sensitive and robust MRM LC/MS/MS method was developed for the quantitation of N-nitroso duloxetine in duloxetine hydrochloride API and finished formulation using the Agilent 6475A LC/TQ.&nbsp;</li><li>The optimized chromatographic conditions provided effective separation of the analyte from the API, placebo, and formulation matrices, ensuring reliable quantitation.&nbsp;</li><li>The calibration curve was linear over the concentration range of 0.5-40 ng/mL, with 1/x weighting. R and R2 values were observed for both to be greater than 0.99.&nbsp;</li><li>Recovery studies demonstrated efficient sample extraction, with recoveries ranging from 92-99% in API samples and 109-116% in pellet formulations at the LOQ, specification, and 200% specification levels.&nbsp;</li><li>The method also showed excellent reproducibility across all evaluated concentration levels, confirming its suitability for routine analysis.</li></ul><h3>2. Shimadzu / ASMS: Non-Targeted Analysis of Per- and Polyfluoroalkyl Substances in Environmental Extracts by Microflow LC-QToF Coupled with Multi-spray ESI</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/TP_562_Non_Targeted_Analysis_of_Per_and_Polyfluoroalkyl_Substances_in_Environmental_Extracts_by_Microflow_LC_Q_To_F_Coupled_with_Multi_spray_ESI_c2a7e1d5bf.pdf">Full PDF for download</a></li></ul>Targeted screening methods are well established for monitoring Perand polyfluoroalkyl substances (PFAS) in environmental samples. However, PFAS comprise a large and evolving class of compounds, creating a need to screen existing, emerging, and transformation products across diverse matrices. Non-targeted Analysis (NTA) allows for the confirmation of suspected PFAS in the environment, but the sample characterization is often limited by analytical sensitivity. Microflow (0.5 – 40 µL/min) coupled with a multi-nozzle emitter enhances sensitivity by improving desolvation. When this is coupled to a high mass accuracy and resolution Quadrupole Time-ofFlight Mass Spectrometer (QToF), capable of data-dependent and independent MS/MS, PFAS characterization of unknown analytes is possible. In this study, various environmental extracts were processed and screened using NTA for PFAS compounds.<h4>Methods</h4>A <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=1&amp;search=Nexera+Mikros">Shimadzu Nexera Mikros LC </a>was used to introduce the sample to a Newomics DuoESI source with an M3 emitter on a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=1&amp;search=9050">LCMS-9050 QToF MS</a> (Fig. 1). A direct injection on an octadecyl column without delay column was performed. Direct injection was chosen over trapand-elute configuration to minimize selectivity bias caused by the trap column.&nbsp;<h4>Conclusion</h4>With the increased sensitivity of microflow LC-QToF coupled with multi-spray ESI with DIA acquisition, Insight Explore aided in NTA PFAS analysis. When paired with Insight Discovery and Profiler, a streamlined batch data processing workflow with statistical analysis was shown to effectively handle complex environmental matrices and their analyses.<h3>3. Thermo Fisher Scientific / ASMS: Robust and sensitive quantitation of 18 steroids in human serum using Thermo Scientific TSQ Certis Triple Quadrupole mass spectrometer</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/po_004707_lsms_18_steroids_tsq_certis_clinical_po004707_asms2026_na_en_244c52437b.pdf">Full PDF for download</a></li></ul>Accurate quantification of endogenous steroids in human serum is essential for biomonitoring physiological functions such as hormone regulation, reproduction, and immune response in clinical research laboratories. Liquid chromatography–tandem mass spectrometry (LC–MS/MS) is the gold standard for steroid analysis due to its superior sensitivity, selectivity, and multiplexing capability compared to immunoassays. However, steroid measurements remain challenging because of low endogenous concentrations and complex serum matrices. Here, we describe a robust and sensitive LC–MS/MS method for the simultaneous quantification of 18 steroids in human serum using the Thermo Scientific TSQ Certis triple quadrupole mass spectrometer (Figure 1). The method leverages advanced ion source design and fast acquisition to deliver enhanced sensitivity, stability and throughput suitable for high-volume laboratory workflows.<h4>Materials and methods</h4><h5>Liquid chromatograph – mass spectrometry&nbsp;</h5>Samples were analyzed on a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/744">Thermo Scientific Vanquish Horizon UHPLC system</a> coupled to the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2207">TSQ Certis MS</a> operated in selected reaction monitoring (SRM) mode. The mobile phase composition, analytical column details, LC gradient, and overlaid extracted ion chromatograms (EICs) are shown in Figure 3.&nbsp;<h5>Data analysis&nbsp;</h5>Data were acquired and processed using <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/77">Thermo Scientific TraceFinder software</a> (v 5.2).<h4>Conclusions&nbsp;</h4>A sensitive and robust LC–MS/MS method was developed for simultaneous quantification of 18 steroids in human serum using the Vanquish Horizon UHPLC and TSQ Certis MS with OptaMax Plus ion source. The method demonstrated excellent linearity, accuracy, and reproducibility across a wide dynamic range. Optimization of MS conditions, particularly vaporizer temperature, significantly improved sensitivity. Overall, the workflow delivers high sensitivity, selectivity, and long-term stability, providing a reliable solution for high-throughput steroid analysis in clinical and research settings.<h3>4. Waters Corporation: Alkaline-hydrolysis Method for PFAS in Textiles and Textiles Products by Xevo™ TQ-S micro with ACQUITY™ UPLC™ H-Class Plus System</h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/720009443_en_0ab4914d72.pdf">Full PDF for download</a></li></ul><div><div><section><div><div><div><div><div><div><h5>Benefits&nbsp;</h5><ul><li>Alkaline hydrolysis method (EN 17681-1:2025) used for preparing textiles, coated textiles and textile products for PFAS analysis allowed the inclusion of side-chain fluorinated polymers&nbsp;</li><li>Extraction method provided significant advantages in handling complex textile matrices by creating clear extracts free from dispersions, settleable solids and particulates&nbsp;</li><li>Protected the high-value LC-MS/MS components from potential damage&nbsp;</li><li>The method improved analytical sensitivity, reproducibility and accuracy, enabled cost-effective and timeefficient PFAS analysis maintained high analytical quality even for challenging high-matrix samples</li></ul>Many PFAS are linked to health concerns because of their ability to interfere with the body’s hormone systems, acting as endocrine disruptors also, linked to other toxic effects. Since textiles come into direct and prolonged contact with the skin, there is an increased risk of human exposure—especially for babies and children.4 In addition, PFAS pose significant environmental concerns. These “forever chemicals” do not readily break down and can be released during manufacturing, washing and disposal, allowing them to enter water pathways and persist in the environment. As a result, testing for PFAS has become increasingly important in the textile industry to demonstrate supply chain transparency, build consumer trust and protect brand reputation.Synthetic fluorinated chemicals are categorized into two main groups - non-polymeric PFAS and polymeric PFAS, known for their use as water and grease repellent, heat resistant finishes in textiles, upholstery, leather, apparel, carpet and other industrial applications such as packaging, firefighting foams, non-stick cookware, etc. (Figure 1). PFAS are fluorinated substances contain at least one fully fluorinated methyl or methylene carbon atom (without any H/Cl/Br/I atom attached to it), i.e. with a few noted exceptions, any chemical with at least a perfluorinated methyl group or a perfluorinated methylene group.2 PFAS are classified as long chain and short chain based on their perfluorinated carbon chain length. Short chain fluorinated polymers encompasses a diverse range of chemistries, categorized according to their generic chemical and repeating units structures. Few examples are: derivatives of fluorotelomers, perfluoropolyethers with varying carbon chain lengths and acrylates, epoxylates, urethane, silicones of repeated units based structures.3 Polyfluoroalkyl substances such as fluorotelomer alcohols (FTOHs) contain C–H bonds, rendering them more susceptible to degradation. The ethoxylates in fluorotelomers-methacrylate break down to FTOH whereas polymeric fluorinated urethanes, acrylates break down to PFCAs (non-polymeric and polymeric side chain fluorinated polymers). In contrast, perfluoroalkyl substances such as PFOS and PFOA are extremely persistent due to their fully fluorinated carbon chains.&nbsp;In alkaline hydrolysis methods, methanolic aqueous sodium hydroxide is used to break down precursor PFAS such as FTOHs, branched side chain PFAS. This process releases terminal perfluorinated carboxylic acids (PFCAs), which can then be measured. However, the efficiency of hydrolysis varies among different PFAS compounds and the presence of interfering substances such as organic matter or other chemicals in the sample matrix can inhibit the cleavage and detection of these analytes.<h4>Experimental</h4><ul><li>LC system: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/198">ACQUITY UPLC H-Class Plus System</a> and SMFTN fitted with PFAS kit</li><li>Column(s): <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1823">XBridge™ BEH™ C18 5 µm Column</a>, 4.6 x 100 mm&nbsp;</li><li>MS system: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/209">Xevo TQ-S micro Mass Spectrometer</a></li></ul><h4>Conclusion&nbsp;</h4>By strictly following the critical steps of the alkaline hydrolysis method using methanolic aqueous sodium hydroxide (NaOH) both freely extractable PFAS and those previously bound within side-chain fluorinated polymers such as esters linked to fluorotelomer alcohols (n:2 FTOHs, where n = 4, 6, 8, 10, 12), can be effectively extracted. This approach also safeguards the LC-MS/MS instrumentation from blockages, damage, or contamination by preventing polymer accumulation and matrix interferences.&nbsp;The analytical method using the ACQUITY UPLC H-Class Plus System and Xevo TQ-S micro LC-MS/MS System was found to be sensitive, reproducible and accurate, enabling cost-effective and time-efficient PFAS analysis in chemically processed textiles, coated textiles and textile products whilst maintaining high analytical quality even for challenging high-matrix samples.</div></div></div></div></div></div></section></div></div>

News from LabRulezLCMS Library - Week 34, 2026

Article

Product

Application

Academy

Video

Poster

A unique company dedicated to serving science helping our customers drive productivity and accelerate results. Through our premier brands – Thermo Scientific, Applied Biosystems, Invitrogen, Fisher Scientific and Unity Lab Services.

Thermo Fisher Scientific

Everything from the world of analytical chemistry in one place. We connect people in solving their problems. At Labrulez you will find all the necessary information easily, quickly and clearly. Stop searching and start finding.

LabRulez

Based in Berlin, KNAUER is a medium-sized, owner-managed company that has been serving the sciences since 1962. We develop and manufacture scientific instruments of superior quality for liquid chromatography, including: Analytical HPLC/UHPLC, Preparative HPLC, Fast protein liquid chromatography (FPLC), Multi-column chromatography/Simulated moving bed (SMB) chromatography. High pressure dosing, in-line detection systems, and osmometry are additional business areas.

KNAUER

The Analytical Scientist

Technology Networks

SelectScience

Shimadzu Corporation

SCIEX

Waters Corporation

<h4>European Free Educational Webinar Series</h4>
Let&#39;s go back to the basics of Chromatography, Mass Spectrometry, Data Analysis and Trouble-shooting: understanding the importance of the basics will enable you to be more effective in your daily laboratory life.
<h4>EPISODE 7</h4>
Introduction to Mass Spectrometry
What will you learn?
<ul>
<li>Fundamentals of MS: LC/MS, LC/MS/MS &amp; TOF Systems</li>
<li>How to modify your LC Method when adding MS Detection</li>
</ul>
<blockquote>
Prezenter: Antonia Wierzbicki (Principal MS Market Dev Manager, EMEA, Waters Corporation)
</blockquote>
<blockquote>
Antonia Wierzbicki is a MS market development manager at Waters working in EMEA. Antonia has BSc in Pharmaceutical Science and a MSc in Cancer Pharmacology.
</blockquote>
<blockquote>
Following several years working as an analytical chemist in drug development roles within both academic labs and contract research organizations, Antonia has more recently spent time working with analytical chemists to provide solutions using cutting edge technologies to meet their needs and requirements, with a specific interest in ultra-sensitive quantitation of small molecules.
</blockquote>
<blockquote>
Antonia is based in Cambridge UK and keen to connectwith like-minded scientists in the field.
</blockquote>
<h4>What&#39;s next?</h4>
Full Webinar Series Episodes List is available <a href="https://event.on24.com/wcc/r/4551012/F69479929A905500D8B21508527807E5/5385652">here</a>
Back to Basics - Sample Preparation: Theory and Overview
<ul>
<li>Tuesday, May 07, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - Sample Preparation: Tips &amp; Tricks to make it simple
<ul>
<li>Wednesday, June 05, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - Theory of Liquid Chromatography
<ul>
<li>Wednesday, July 03, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - Basics of Liquid Chromatography
<ul>
<li>Tuesday, September 10, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - Analytical Method Development
<ul>
<li>Wednesday, October 02, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - The importance of Compliance
<ul>
<li>Tuesday, October 22, 2024, 11:00 AM CEST</li>
</ul>
Back to Basics - Introduction to Mass Spectrometry
<ul>
<li>Wednesday, November 13, 2024, 11:00 AM CET</li>
</ul>
Back to Basics - Troubleshooting your LC and MS Systems
<ul>
<li>Tuesday, December 10, 2024, 11:00 AM CET</li>
</ul>
Not sure to be able to attend live sessions?
Register today and watch the webinars on-demand

Waters Corporation: Back to Bacisc Free Educational Webinar Serries

Introduction to Mass Spectrometry

Fundamentals of MS in LC/MS, LC/MS/MS & TOF Systems.

<ul>
<li>Discuss what GC-MS/MS is and what applicaitons it is used for (Dioxins, POPs, etc.)
</li>
<li>Transition into an overview of APGC as a solution
</li>
<li>Discuss challenges or limitations of the current GC/MS/MS technology
</li>
<li>Share why using nitrogen as a carrier gas for GC/MS/MS analysis is optimal
</li>
</ul>
Webinar Learning Objectives:
<ul>
<li>Understanding GC-MS/MS and Its Applications:- Discuss the principles of gas chromatography-mass spectrometry (GC-MS/MS) and its role in analytical chemistry.- Explore specific applications of GC-MS/MS, including its use in detecting dioxins, persistent organic pollutants (POPs), and other environmental contaminants.
</li>
<li>Introduction to APGC (Atmospheric Pressure Gas Chromatography):-. Provide an overview of Atmospheric Pressure Gas Chromatography (APGC) as an alternative solution to traditional GC-MS/MS.- Highlight the advantages and unique features of APGC, such as improved sensitivity, reduced matrix effects, and enhanced selectivity.
</li>
<li>Challenges and Innovations in GC-MS/MS Technology:- Identify the current challenges and limitations faced by GC-MS/MS technology.- Discuss recent innovations and advancements aimed at overcoming these challenges.- Emphasize the importance of using nitrogen as a carrier gas for GC-MS/MS analysis, considering its inertness, availability, and compatibility with various detectors.
</li>
</ul>
<blockquote>
Prtesenter: Frank Dorman (Senior Principal Market Development Mgr, Waters Corporation)
</blockquote>
<blockquote>
Frank Dorman is currently Senior Principal Market Development Manager for Waters focusing on their global environmental business and, concurrently, a Resident Scholar in the Chemistry Department at Dartmouth College in Hanover, NH where he is active in teaching analytical chemistry to undergraduates and graduate students.
</blockquote>
<blockquote>
In his role at Waters, Frank manages the research-focused environmental market, external collaborations, and interfaces with R&amp;D for new product development. Prior to this, Frank was an Associate Professor in the Department of Biochemistry and Molecular Biology (BMB) sat Penn State University in University Park, PA. At Penn State, Frank served as a member of the Graduate Faculty in: Biochemistry, Microbiology and Molecular Biology (BMMB), Chemistry (CHEM), Biogeochemistry (BGC) and the Forensic Science Program (FRNSC) and the Center for Molecular Toxicology and Carcinogenesis. Franks scientific interests are in gas and liquid chromatography and fundamental characterization, instrumentation and column development, as well as mass spectrometry and atomic spectroscopy as applied to trace analysis in complex sample matrices.
</blockquote>
<blockquote>
Presenter: Sarah Dowd (Principal Mass Spectrometry Applications Specialist, Waters Corporation)
</blockquote>
<blockquote>
Sarah Dowd joined Waters as a mass spectrometry application specialist in 2015 after earning her PhD in analytical chemistry from the University of Illinois at Urbana Champaign.
</blockquote>
<blockquote>
In her eight years at Waters in the Americas application lab, Sarah has collaborated with many customers looking to expand the MS capabilities of their laboratories with Water&#39;s instruments and software. Specializing in analyses in food, environmental, and polymeric materials characterization, she has done extensive work looking at environmental contaminants with tandem quadrupole and high resolution mass spectrometers.
</blockquote>
<blockquote>
One of the hot topics for the past couple of years is the analysis of per- and polyfluoroalkyl substances (PFAS) and Sarah has collaborated with customers and other scientists within Waters to guide the next phase of PFAS testing with Waters mass spectrometry systems.
</blockquote>

Waters Corporation: APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evolution

APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evolution

Discuss what GC-MS/MS is and what applicaitons it is used for (Dioxins, POPs, etc.)

APGC Roundtable: Unveiling the Pathways of GC-MS/MS Evo

In this presentation, we will explore groundbreaking advancements in the bioanalysis of antisense oligonucleotides (ASO), achieving remarkable sub ng/mL limits of quantitation (LOQ). We’ll dive into practical and scalable solutions that ensure precise quantitation of these complex molecules.Discover innovative sample preparation techniques designed to maximize recovery, enhance repeatability, and boost LC-MS sensitivity. Additionally, we’ll showcase the latest LC-MS hardware from Waters, which not only delivers industry-leading negative ionization efficiency, but also saves valuable bench space and reduces utility usage compared to competitors.<h5>Key Learning Objectives:&nbsp;</h5><ul><li>Explore scalable solutions for quantifying complex oligonucleotides across a wide range of concentrations.</li><li>Discover practical approaches that enhance recovery, repeatability, and LC‑MS sensitivity.</li><li>Take advantage of the opportunity to attend the presentation live, where you'll have the chance to ask questions, engage, clarify, and deepen your understanding of the latest innovations in bioanalysis.</li></ul><div><blockquote>Presenter: Andrew Leightner (Senior Principal Market Development Manager, Pharmaceuticals and Biopharmaceuticals, Waters Corporation)<div>Andy Leightner has over 10 years of experience serving the pharma market from contract research organizations. He specialized in method development and validation leveraging LC, GC, and mass spectrometry to meet complex client needs. He supports pharmaceutical and biopharmaceutical discovery and development in the Americas for Waters Corporation. Andy received a bachelors degree in biology from the University of Wisconsin-Madison.</div></blockquote></div>

Elevating Oligonucleotide Bioanalysis: LOQ, Dynamic Range, and Innovative Sample Preparation Techniques

We will explore groundbreaking advancements in the bioanalysis of antisense oligonucleotides (ASO), achieving remarkable sub ng/mL limits of quantitation (LOQ).

Oligonucleotide Bioanalysis: LOQ, Dynamic Range, SamplePrep

Hear about the latest advancements in translational proteomics and metabolomics. From the molecular mechanisms of disease pathology to the latest technological developments in diagnostics and treatment.<h5>Key Learning Objectives:</h5><ul><li>Spatial proteomics to assess health and diseases</li><li>Absolute quantitation of human proteins</li><li>The latest innovations in proteomics and metabolomics instrumentation and data analysis</li><li>Biomarker-guided precision medicine</li></ul><h4>Day 2 – October 31</h4><h5>15:00 – 15:50 GMT: A Novel Strategy for the Absolute Quantification of Human Proteins</h5><ul><li>Christoph Borchers, PhD (McGill University)</li></ul><h5>15:50 – 15:55 GMT: Networking Break</h5><h5>15:55 – 16:15 GMT: From Single Cells to the Metaproteome: Latest Developments in timsTOF Technology for Proteomics</h5><ul><li>Matt Willetts, PhD (Bruker)</li></ul><h5>16:15 – 16:20 GMT: Networking Break</h5><h5>16:20 – 17:10 GMT: Single-Cell Chromatin Proteomics to Investigate the Biology of Exceptional Longevity</h5><ul><li>Simone Sidoli, PhD (Albert Einstein College of Medicine)</li></ul><h5>17:10 – 17:15 GMT: Networking Break</h5><h5>17:15 – 17:35 GMT: Optimizing Metabolomics Workflows: From Sample Preparation to Multi-omics Integration</h5><ul><li>Hagen Magnus Gegner, PhD (CTC Analytics)</li></ul><h5>17:35 – 17:40 GMT: Networking Break</h5><h5>17:40 – 18:10 GMT: Analyzing Metabolic Responses to a Standardized Meal Challenge Using Exhaled Breath</h5><ul><li>Matteo Tardelli, PhD (Owlstone Medical)</li></ul><h5>18:10 GMT: Event Close</h5><h5>Who Should Attend:</h5><ul><li>Scientists and researchers seeking to expand their knowledge</li><li>Pharmaceutical and biotech professionals driving drug development</li><li>Clinicians looking to improve patient care</li><li>Academicians exploring new research avenues</li><li>Graduate students and postdoctoral fellows building their careers</li></ul><blockquote>Presenter: Mathias Uhlén, PhD (Professor, KTH - Royal Institute of Technology)Presenter:&nbsp;Christoph Borchers, PhD (Professor, McGill University)Presenter:&nbsp;Janne Lehtiö, PhD (Professor, Karolinska Institutet)Presenter:&nbsp;Crystal Montoya (Senior Marketing Product Manager, Miltenyi Biotec)Presenter:&nbsp;Kari Basso, PhD (Director of Mass Spectrometry Research and Education, University of Florida)Presenter:&nbsp;Fabian Coscia, PhD (Group Leader, Max Delbrück Center)Presenter:&nbsp;Simone Sidoli, PhD (Assistant Professor, Albert Einstein College of Medicine)Presenter:&nbsp;Hagen Magnus Gegner, PhD (Content and Digital Marketing, CTC Analytics)Presenter:&nbsp;Matt Willetts, PhD (Proteomics Applications Manager, Bruker Daltonics)Presenter:&nbsp;Matteo Tardelli, PhD (Senior Biomarker Scientist, Owlstone Medical)Presenter:&nbsp;Aaron Gajadhar, PhD (Director, Strategic Applications, Seer)Presenter:&nbsp;Gary Siuzdak, PhD (Professor and Senior Director, Scripps Research Institute)</blockquote>

Technology Networks: Advances in Proteomics & Metabolomics 2024

Advances in Proteomics & Metabolomics 2024 (Day 2)

Hear about the latest advancements in translational proteomics and metabolomics. 

Advances in Proteomics & Metabolomics 2024  (Day 1)

Gain insights into how delay columns, essential to control the presence of PFAS in the laboratory, function. And understand how different delay columns impact method performance.We will host a Q&amp;A session after the presentation to address any questions or comments.<blockquote>Presenter: Landon Wiest, PhD (Product Manager - LCMS, Shimadzu Scientific Instruments)Dr. Landon Wiest is the Product Manager for LCMS at Shimadzu Scientific Instruments, leading a team of scientists who focus on applications development customer care. He has extensive experience in method and product development, research project management, and customer applications, with a strong background in liquid chromatography. At Restek Corporation, Landon led technology development teams and advanced new particle technologies, while also publishing application notes and creating educational content for webinars and short courses.He earned a Ph.D. in Analytical Chemistry from Brigham Young University, where he developed patented diamond/carbon-based chromatographic particles. Recognized for his contributions to chromatography, Landon was nominated for the Csaba Horváth Award. Fluent in Danish and knowledgeable in German, Landon excels at communicating complex scientific concepts and is dedicated to advancing scientific knowledge. Presenter: Ruth Marfil-Vega, PhD (Sr Market Manager – Environmental, Shimadzu Scientific Instruments)Dr. Ruth Marfil-Vega has 20 years of expertise in environmental chemistry and engineering in the US and Europe. She has worked with the EPA and the utilities industry to design and execute comprehensive solutions for addressing new environmental and water quality issues, including PFAS, regulated and unregulated DBPs, and other emerging contaminants. Since Ruth joined Shimadzu five years ago, she has continued to work with environmental stakeholders to ensure that analytical instrumentation and workflows support their success. She earned a BSc in Chemistry from the University of Valladolid (Spain) and a PhD in Environmental Science and Engineering from the University of Cincinnati.</blockquote><h3>PFAS in Focus</h3>Welcome to PFAS in Focus, a comprehensive and exclusive webinar series sponsored by Shimadzu, covering the basics and beyond about the analysis of Per- and Polyfluoroalkyl Substances (PFAS) in the environment.Join our experts, live or on-demand after the original air date, to demystify the challenges of PFAS analysis and gain the insights you need to:<ul><li>Manage PFAS contamination in your laboratory.</li><li>Master standardized methods for PFAS testing.</li><li>Discover new analytical workflows to maximize the performance of your LC-MS/MS for PFAS analysis.</li></ul>Who should attend:<ul><li>Environmental industry professionals and academics currently working on PFAS analysis or looking to establish the application in their labs.</li><li>Representatives from drinking and wastewater utilities.</li><li>LC–MS users from any field interested in expanding their applications to include PFAS testing.</li></ul>

Mastering PFAS Control: Transform Your Laboratory Practices

Gain insights into how delay columns, essential to control the presence of PFAS in the laboratory, function.

With the need for risk assessment and testing plans looming on the horizon, join us to learn about the challenges of low-level nitrosamine detection for both LCMS and GCMS applications.We will explore the pressing questions of coming regulation, including guidance on NDSRIs, the differing use cases of the 4 Procedures of USP &lt;1469&gt; and how Shimadzu can be your partner in creating solutions to meet these requirements.As you prepare for the August 1, 2025 deadline, whether your needs will be nitrosamine discovery with LCMS-QTOF or high-sensitivity QC monitoring with headspace GC-MS/MS, Shimadzu has the hardware and applications to help you succeed.We will host a Q&amp;A session after the presentation to address any questions or comments.<blockquote>Presenter: Brian Domanski (Strategic Collaboration Scientist, Shimadzu Scientific Instruments)Brian has over 10 years working to provide LC and SFC solutions for Pharma, as well as experience with a wide range of chromatography techniques including RP, NP, HILIC, IEX, SEC/GPC, and IC. His focus also includes scalable Informatics and Data Integrity solutions.</blockquote>

Shimadzu: Are you Nitrosamine Ready? Solutions for Nitrosamine Analysis

Are you Nitrosamine Ready? Solutions for Nitrosamine Analysis

Join us to learn about the challenges of low-level nitrosamine detection for both LCMS and GCMS applications.

Solutions for Nitrosamine Analysis by LCMS and GCMS

Join us for our winter school dedicated to accelerating your knowledge of innovative triple quad technologies and learn the fundamentals and theory of mass spectrometry. This winter, we're offering a 30-minute webinar designed to fit into your schedule.<h5>Learn more about:</h5><ul><li>The fundamentals and theory of mass spectrometry.</li><li>The ease of getting from data to results.</li><li>Recent innovations in SCIEX instrumentation: SCIEX 7500+ system.</li></ul>Event 1: December 10, 2024 10:00 - 10:30 CETEvent 2: December 17, 2024 10:00 - 10:30 CETEvent 3: January 7, 2025 10:00 - 10:30 CET

Winter school: LC-MS essentials

Master the essentials of triple quad technology with our live webinars this winter.

The complete Solution for Food Analysis: Presented by Retsch, CEM, Shimadzu and EltraAccurate and rapid food analysis is becoming increasingly important as regulations become stricter and consumers become more demanding. This expert day on food analysis will give you a comprehensive overview of the optimal steps from sample preparation to analysis, familiarize you with modern methods and bring you up to date.Registration is free of charge and without obligation.<div><div><div><div><div><h3>Heavy metals and pesticides in highly processed&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</h3>In the third part of the webinar series the focus is on analytics. Each step of food processing presents a source of contamination, which is why highly processed foods (ultra-processed foods (UPF)) should be viewed critically.Heavy metals are analyzed using ICP-MS and pesticides using GCMS/MS and SFC-LCMS/MS. You have the opportunity to get in touch with device experts and discuss your questions.</div></div>In this webinar, you will learn more about:<ul><li>How to measure pesticides in difficult samples using LC-MS/MS and SFC-MS/MS</li><li>Determination of pesticides in food samples using GC-MS/MS with hydrogen as carrier gas</li><li>Challenges and solutions for heavy metal analysis</li><li>How much heavy metals are lurking in trend food products?</li></ul>Presenters: Uwe Oppermann, Stéphane Moreau, Waldemar Weber and Johannes Hesper</div></div></div>

Heavy metals and pesticides in highly processed

Heavy metals are analyzed using ICP-MS and pesticides using GCMS/MS and SFC-LCMS/MS. 

Session 1:The fundamental unit of a living organism is the single cell. What are the benefits and issues with pushing towards single cell measurements? The overarching goal is to provide an understanding of why discovery based single cell analysis is important and achievable. Several example applications highlight single cell metabolites including amino acids, small bio-active neuropeptides and neurotransmitters. Metabolites in individual cells were characterized using capillary electrophoresis (CE) with MRM MS with the QqQ-MS. The sample preparation steps were performed in vial inserts in the CE system to reduce the solution requirements of the autosampler to ~2 µL. Other changes to the system include a nanointerface and a mechanically tapered capillary tip for optimized detectability. The CE-nanoESI-QqQ MS system demonstrated detection limits at the single attomole level for a range of amino acids and transmitters. We characterize a range of cells including Aplysia californica neurons, rodent neurons, transplant-quality islets, and individual endocrine cells. The combination of nanovial CE-nanoESI-QqQ MS, interface, auto sampler, and fast MRM measurements enables high-throughput, high-sensitivity, and robust metabolite analysis of single cells.Key learning objectives<ul style="list-style-type:disc;"><li style="tab-stops:list 36.0pt;">Why single cell assays provide key details</li><li style="tab-stops:list 36.0pt;">How to prepare single cells for measurements</li><li style="tab-stops:list 36.0pt;">Why CE/MS works well for single cell metabolomics</li><li style="tab-stops:list 36.0pt;">Benefits of a targeted QQQ approach</li><li style="tab-stops:list 36.0pt;">How to reduce sample volumes</li><li style="tab-stops:list 36.0pt;">On going optimization of CEMS interface</li><li style="tab-stops:list 36.0pt;">Quantify differences in metabolic levels between cells</li><li style="tab-stops:list 36.0pt;">Scientists in the life sciences, with a focus on discovery, or a need for large-scale analyses</li></ul>Who should attend?<ul style="list-style-type:disc;"><li style="tab-stops:list 36.0pt;">Discovery groups involved with identifying and quantifying biomarkers. Researchers who are sample limited.</li></ul>Session 2:Untargeted metabolomics and lipidomics have traditionally been seen as primarily academic pursuits, often dismissed in clinical research due to perceived challenges in scalability and reproducibility. However, the emergence of precision health, which relies on the concept of digital twins—comprehensive digital representations of the complete molecular content of biological specimens—necessitates the use of untargeted approaches. These methods, in theory, offer the potential to explore an extensive chemical space. But what does it take to implement such analyses on a large scale, aiming both for accuracy in quantification and extensive identification? This presentation will highlight the key lessons learned from the Swiss Personalized Health Initiative.Key learning objectives<ul style="list-style-type:disc;"><li style="tab-stops:list 36.0pt;">Why is QTOF technology ideally suited for untargeted analyses, both for metabolites and lipidomics</li><li style="tab-stops:list 36.0pt;">What are the critical factors to perform large scale LC-MS (LC, MS, DDA)</li><li style="tab-stops:list 36.0pt;">Harmonization of large-scale data</li></ul>Who should attend?<ul style="list-style-type:disc;"><li style="tab-stops:list 36.0pt;">Scientists in the life sciences, with a focus on discovery, or a need for large-scale analyses</li></ul>Certificate of attendance All webinar participants can request a certificate of attendance, including a learning outcomes summary, for continuing education purposes.<blockquote>Presenter: Dr. Jonathan V. SweedlerJames R. Eiszner Family Endowed Professor of Chemistry and is affiliated with the Institute of Genomic Biology and the Beckman Institute for Advanced Science and Technology at the University of Illinois Urbana-Champaign, University of Illinois Urbana-ChampaignDr. Sweedler’s research interests focus on developing new lipidomics, metabolomics and peptidomics approaches for assaying small volume samples including new sampling approaches, miniaturized separations, and mass spectrometry. He has used these tools to characterize small molecules and peptides in a range of animal models across metazoan life and in samples as small as individual cells and cellular domains. Sweedler has published more than 500 manuscripts and presented more than 600 invited lectures. &nbsp;He has received numerous awards including the Instrumentation Award from the Analytical Division of the ACS, the Pittsburgh Analytical Chemistry Award, and the ACS Award in Analytical Chemistry. He is a fellow of both the American Association for the Advancement of Science and the American Chemical Society. He is currently the Editor-in-Chief for Analytical Chemistry.Presenter: Prof. Dr. Nicola ZamboniProfessor at the Institute of Molecular Systems Biology of ETH Zurich, and head of the PHRT Clinical Metabolomics Analysis Center., ETH ZurichNicola Zamboni’s research pivots on investigating metabolism and its regulation, from cells to humans. The lab relies heavily on mass spectrometry to quantify levels and rates of conversion of metabolites. In parallel, it develops computational approaches to enable large-scale data acquisition and integration. The lab is embedded in the Swiss personalized health initiatives as main provider of metabolomics and lipidomics for clinical research.Moderator: Matilde Marques (Life Sciences Assistant Editor, SelectScience)</blockquote>

SelectScience: Metabolomics Masterclass: Cutting-Edge Techniques for Single Cell Analysis and Precision Health at Scale

Metabolomics Masterclass: Cutting-Edge Techniques for Single Cell Analysis and Precision Health at Scale

In two sessions, single-cell metabolomics and untargeted metabolomics, and lipidomics will be discussed.

Metabolomics Masterclass: Single Cell Analysis

LC-MS/MS is the gold standard for a wide range of analytical methods in clinical laboratories, with its orthogonality providing powerful levels of selectivity and analytical sensitivity. The Waters Total Solution LC-MS/MS Workflow has been designed to improve the user experience of LC-MS/MS to allow more users to successfully utilize the technique in their laboratories. The workflow can be adopted for a range of small molecules, as well as large molecules, such as the large glycoprotein, thyroglobulin.Using thyroglobulin as an example, we will guide you through aspects of large molecule method development and highlight steps of the workflow that minimize user touch-time, maximize throughput and improve turnaround time. Aspects of the workflow include:<ul><li>Improving the workflow reproducibility with full automation of the Stable Isotope Standards and Capture with Anti-Peptide Antibodies (SISCAPA™) approach using the&nbsp;Andrew+ Pipetting Robot</li><li>Increasing throughput and robustness with Parallel Column Regeneration</li><li>Same day reporting of results using the power of UPLC-MS/MS with waters_connect for IVD and Quan Review</li></ul>Who Should Attend?<ul><li>Laboratory professionals and clinicians who are eager to learn about the benefits of LC-MS/MS in the clinical laboratory workflow</li><li>Laboratory professionals who are seeking to expand their knowledge into using LC-MS/MS for the quantitative analysis of peptides and proteins for clinical research</li></ul><div><div dir=""><div><blockquote><div>Presenter: Dominic Foley (Consulting Scientist, Waters Corporation)</div></blockquote></div></div></div><div><blockquote>Dominic Foley is a Consulting Scientist working at Waters MS Headquarters in Wilmslow, UK. Having joined the company in September 2013, he has specialized in the development of LC-MS/MS clinical research applications, with a focus in endocrinology, particularly steroid hormone analysis. In his role, he also collaborates with clinical customers in the development and implementation of LC-MS/MS methods in their laboratories.Dominic has worked in separation sciences for 17 years, following his ambition of improving the quality of healthcare. He started his career with ICON Development Solutions, a CRO in the north of the UK, where he worked as a LC-MS/MS method development and validation scientist supporting DMPK studies in drug discovery. In 2012, he joined Thermo Fisher Scientific to work in their Chromatography R&amp;D team as a Technical Support Specialist, working on the development of new chromatography and sample preparation products.Dominic received his BSc (Hons) in Biochemistry from the University of Manchester in 2006. He has presented his work at conferences around the world and has publications in journals such as Clinical Chemistry and Laboratory Medicine, Analytical Chemistry and Journal of Chromatography A.</blockquote></div>

Waters Corporation: Quantification of Thyroglobulin in Serum for Clinical Research using SISCAPA Workflow Combined with LC-MS/MS

Quantification of Thyroglobulin in Serum for Clinical Research using SISCAPA Workflow Combined with LC-MS/MS

We will guide you through aspects of large molecule method development and highlight steps of the workflow that minimize user touch-time, maximize throughput.

LCMS webinars focusing on LC/QQQ - page 14