News from LabRulezLCMS Library - Week 32, 2025

<p><strong>Our Library never stops expanding. What are the most recent contributions to LabRulezLCMS Library in the week of 29th September 2025? Check out new documents from the field of liquid phase, especially HPLC and LC/MS techniques!</strong></p><blockquote><p><span style="font-size:20px;">👉 </span><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library"><span style="font-size:20px;"><strong>SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT LCMS AND RELATED TECHNIQUES</strong></span></a></p></blockquote><blockquote><p><strong>👉 Need info about different analytical techniques?</strong> Peek into <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library"><strong>LabRulezGCMS</strong></a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library"><strong>LabRulezICPMS</strong></a> libraries.</p></blockquote><p>This week we bring you application note by <strong>Agilent Technologies </strong>and posters by<strong> Shimadzu / AOAC, Thermo Fisher Scientific </strong>and <strong>Waters Corporation / AOAC!</strong></p><h3><strong>1. Agilent Technologies: Comparison of Dual Sorbent Solid Phase Extraction for PFAS Applications</strong></h3><p><strong>Using dual-phase Agilent </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=10&amp;search=Bond+Elut+PFAS+WAX"><strong>Bond Elut PFAS WAX/ Carbon S SPE</strong></a><strong> cartridges for US EPA Method 1633</strong></p><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/an_1633_wax_carbon_s_spe_comparison_5994_8291en_agilent_8bdc559ad8.pdf"><strong>Full PDF for download</strong></a></li></ul><p>Many laboratories have opted to combine polymeric weak anion exchange (WAX) and graphitized carbon black (GCB) into single solid phase extraction (SPE) cartridges to streamline sample preparation and facilitate automation for the determination of Per- and Polyfluoroalkyl Substances (PFAS) in environmental samples. This modification is acceptable under Section 1.5 of US EPA Method 1633, if the method's quality control metrics are met.1 The Agilent PFAS WAX and Carbon&nbsp;S sorbents are specifically manufactured for PFAS applications and are lot-tested to ensure low PFAS residue and maximum recovery.2,3 Packing these sorbents into standard 6 mL SPE cartridges with low PFAS residue frits makes them ideally suited for automated methods requiring both WAX extraction and carbon matrix reduction. The extraction performance of the dual-phase Agilent Bond Elut PFAS WAX/Carbon&nbsp;S SPE cartridges are comparable to other commercial cartridges. This ensures seamless integration into existing workflows while assuring optimal performance for PFAS applications.</p><h4><strong>Experimental&nbsp;</strong></h4><p>Extraction recoveries using the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=10&amp;search=Bond+Elut+PFAS+WAX"><strong>Bond Elut layered 200 mg PFAS WAX (top)/50 mg Carbon S (bottom) SPE cartridges</strong></a> (part number 5610-2237) were compared to two other commercial 200 mg WAX/50 mg GCB dual-phase cartridges (Table 1). Four replicate extractions were performed with each sorbent, except for benchmark B, where only two replicates were extracted. The target compounds included the 40 listed in Method 1633, spiked at a low-level concentration of 4 ng/L in 250 mL of reagent water. Target recoveries were quantified using 24 isotope-labeled extracted internal standards (EIS). Extractions were carried out using automated SPE. Method details were described in a previous application note.4</p><h4><strong>Conclusion&nbsp;</strong></h4><p>Dual-phase Agilent Bond Elut PFAS WAX/Carbon S SPE cartridges are specifically manufactured for PFAS applications, with rigorous lot testing to ensure PFAS cleanliness and recovery. They enable efficient streamlined sample preparation and automation for EPA Method 1633. PFAS target and extracted internal standards recoveries are comparable to other dual-phase SPE cartridges, facilitating easy integration into existing EPA Method 1633 workflows.</p><h3><strong>2. Shimadzu / AOAC: Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Drinking Water and Milk using LC-MS/MS coupled with Online-SPE Interface</strong></h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/aoac_2025_t009_835132523a.pdf"><strong>Full PDF for download</strong></a></li></ul><p>Per- and Polyfluoroalkyl Substances (PFAS) are a chemical group of organic fluorinated compounds, and perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) are representative compounds. They have been used in applications such as water repellents, surface treatment agents, fire extinguishers, and coatings. PFAS are known to be widely present in the environment and wildlife due to their stable structure. Concerns about human exposure through diet have led various countries to conduct investigations into food contamination by PFAS.</p><p>We have examined a quantitative analysis method for 43 PFAS in tap water, drinking water, and milk, and developed a pretreatment and analysis method that realized labor and time savings using LC-MS/MS and automatic pretreatment equipment (Fig.1). For extraction from milk, the QuEChERS method was used with reference to the FDA method.</p><h4><strong>Experimental</strong></h4><ul><li><strong>Automatic pretreatment equipment: </strong>SPL-W100 (AiSTI SCIENCE)</li><li><strong>LC-MS/MS:</strong> <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=1&amp;search=LCMS-8060RX"><strong>LCMS-8060RX</strong></a> (Shimadzu)</li></ul><h4><strong>Conclusion</strong></h4><ul><li>LC-MS/MS methods were developed to analyze 43 PFAS in 11 minutes using automatic pretreatment, saving time and labor.</li><li>We conducted recovery tests by adding samples to tap water, drinking water, and milk, and achieved the LOQ set by EPA regulations and AOAC criteria for all compounds.</li><li>The quantitative values of the four main components in tap water were PFOA 0.00109 <span>μ</span>g/kg, PFNA 0.00044 <span>μ</span>g/kg, PFHxS 0.0004 <span>μ</span>g/kg and PFOS 0.00063 <span>μ</span>g/kg. PFAS was not detected above the detection limit in drinking water and milk.</li></ul><h3><strong>3. Thermo Fisher Scientific: High-Throughput and Highly Selective Quantitative Lipidomics with the Stellar Mass Spectrometer – A Novel Hybrid Nominal Mass Instrument</strong></h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/po_unil_stellar_lipidomics_metsoci_2025_po_en_730b1c19fd.pdf"><strong>Full PDF for download</strong></a></li></ul><p>The increasing prevalence of metabolic disorders underscores the need for robust, high-throughput clinical lipid panels and lipidomics methods to quantify lipid species comprehensively, with high precision and selectivity . Structurally related lipids, with varying fatty acid composition, were associated with distinct metabolic consequences and proven to have different biological roles. Thereby, measuring individual lipid species with highest selectivity possible is crucial for corroboration of clinical utility including the improved risk prediction and diagnostics. We present an advanced methodology leveraging the unique capabilities of the new Stellar mass spectrometer. This nominal mass instrument addresses current limitations in specificity and throughput by enabling fast acquisition parallel reaction monitoring, and revolutionizing lipidomics workflows by delivering unprecedented specificity and quantitation. This system combines a quadrupole and a dual cell linear ion trap that significantly improves the ion accumulation efficiency and scan speed. This allows for the acquisition of full MS2 spectra including multiple transitions, thus improving the annotation specificity by resolving isomeric lipids and structurally similar species. This unique capacity of Stellar MS positions it as a practical solution for translational research, biomarker discovery and clinical lipidomics where rapid, sensitive and selective lipid quantitation is essential.</p><h4><strong>Materials and Methods&nbsp;</strong></h4><h5><strong>Sample Preparation&nbsp;</strong></h5><p>Dried UltimateSPLASH ONE internal standard mixture (100 µL) was reconstituted in 25 µL of NIST human plasma SRM 1950 followed by the addition of 125 µL of isopropanol for lipid extraction. The supernatant was then transferred to LC vials for LC-MS analysis. Linearity assessment: different volumes of Avanti Research UltimateSPLASH ONE internal standard mixture (0.5, 1, 5, 10, 50, 100, and 500 µL) were evaporated to dryness, followed by the reconstitution with 25 µL NIST Plasma and 125 µL of isopropanol for lipid extraction.&nbsp;</p><h5><strong>Data Acquisition&nbsp;</strong></h5><p>Plasma lipid extracts were separated on a ACQUITY Premier BEH Amide column (1.7um, 100 mm x 2.1 mm I.D., Waters) and analyzed using a targeted LCMS lipidomics approach on <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/742"><strong>Thermo Scientific Vanquish Duo UHPLC system</strong></a> coupled to a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1149"><strong>Stellar mass spectrometer</strong></a> (Figure 1) 1 . This method was built from a well-established selected reaction monitoring (SRM) method that we Converted to a parallel reaction monitoring (PRM) method by using only the unique precursors. As there are many isomeric lipids sharing the same mass, converting the method for the Stellar reduced 1,019 (579 positive mode; 440 negative mode) SRM precursors to 524 (233 positive mode; 291 negative mode) PRM precursors.</p><h4><strong>Conclusions&nbsp;</strong></h4><ul><li>By integrating LipidCreator with Stellar MS, we expanded on an already thorough lipid workflow by increasing the number of targeted lipids (&gt;50%) and transitions (&gt;3/molecule) enabling higher confidence in lipid identification&nbsp;</li><li>Multiple transitions per precursor, combined with fast scan speeds, enhanced both the specificity and accuracy of lipid quantification, particularly for isomeric species.&nbsp;</li><li>Employing both HCD and CID simultaneously allowed for more robust characterization of sphingomyelins seen in the 2-3 transitions per species.&nbsp;</li><li>This high throughput, targeted approach addresses key limitations and provides a efficient platform for biomarker discovery&nbsp;</li><li>Also, look for our other poster showing a high-throughput targeted MS3 approach has been optimized on the Stellar MS, for the semi-quantification of TG species in human plasma.</li></ul><h3><strong>4. Waters Corporation / AOAC: From Coop to Carton: A Study of PFAS in Backyard &amp; Store-Bought Eggs Using Automation and LC-MS/MS</strong></h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/720009037_6848187630.pdf"><strong>Full PDF for download</strong></a></li></ul><p>Consumers often view backyard chicken eggs as a healthier alternative to store-bought eggs. However, environmental factors such as contaminated soil, water, feed, and bedding may expose backyard chickens to per- and polyfluoroalkyl substances (PFAS). This study set out to compare PFAS levels in eggs from backyard flocks with those in cage-free eggs purchased from grocery stores. The challenge was to analyze whole egg—a dense protein- and fat-rich matrix—efficiently and reproducibly. To address this, an automated sample preparation workflow was developed, reducing analyst involvement, minimizing variability, and ensuring robust results.</p><h4><strong>Methods</strong></h4><p>The workflow combined automated extraction (CEM EDGE) with automated solid-phase extraction (PromoChrom SPE-03) using dual-phase <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/215"><strong>Oasis GCB/WAX cartridges</strong></a> designed for PFAS. Key steps included:</p><ul><li>Homogenizing whole eggs and spiking with internal standards.</li><li>Automated alkaline extraction cycles followed by nitrogen-assisted concentration.</li><li>SPE cleanup with GCB/WAX cartridges to remove matrix interferences.</li><li>Analysis by LC-MS/MS using a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/191"><strong>Waters ACQUITY Premier system</strong></a> coupled to a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/554"><strong>Xevo TQ Absolute mass spectrometer</strong></a>.</li></ul><p>This approach enabled preparation in less than 15 minutes per sample, while the SPE system processed up to eight samples simultaneously in under 70 minutes. Altogether, the workflow provided consistent recoveries across a broad range of PFAS, including EU-regulated compounds such as PFOA, PFOS, PFNA, and PFHxS.</p><h4><strong>Conclusions</strong></h4><p>Automated sample preparation and SPE enabled reproducible, high-throughput analysis of PFAS in whole eggs—a challenging matrix. Results showed that backyard eggs generally contained higher PFAS concentrations and a wider variety of compounds than store-bought eggs, reflecting greater environmental exposure. In contrast, grocery store eggs contained certain PFAS precursors, suggesting possible legacy contamination. The method proved robust for both regulated and emerging PFAS, with recoveries in the acceptable 70–130% range. This workflow offers laboratories a reliable, future-proof solution for PFAS monitoring in foods, helping to ensure consumer safety and regulatory compliance.</p>

News from LabRulezLCMS Library - Week 40, 2025

<h3><strong>A Deep Dive into Waters Oasis, Agilent Bond Elut, and Phenomenex Strata Workflows</strong></h3><p><a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-solid-phase-extraction-spe"><strong>Solid phase extraction (SPE)</strong></a> has become a widely used sample preparation technique across pharmaceutical, environmental, and food safety laboratories worldwide. SPE is used to separate and isolate analytes of interest from a matrix, utilizing the analytes' differential affinities between a solid stationary phase and a liquid mobile phase. The process involves four key steps: conditioning the solid phase; loading the sample onto the solid phase; washing the sample to remove interfering compounds; and eluting the analytes of interest. Following this, the now purified and concentrated sample will usually undergo further analysis such as GC-MS, LC-MS, or HPLC [1]. An often overlooked element within this method of sample preparation is the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/article/5392"><strong>nitrogen blowdown evaporation</strong></a> that bridges SPE extraction and instrumental analysis. This discussion explores the critical role of nitrogen blowdown in enhancing the performance of three widely used SPE platforms: Waters Oasis, Agilent Bond Elut, and Phenomenex Strata.</p><h3><strong>Why Nitrogen Blowdown Matters in SPE Workflows</strong></h3><p>In the final step of SPE, elution, an organic solvent like methanol, acetonitrile, or acetone is used to remove the analytes of interest from the solid phase. This solvent must then be removed before <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-reconstitution"><strong>reconstitution</strong></a> and analysis [1]. Nitrogen blowdown provides controlled, gentle evaporation that concentrates analytes while preventing thermal degradation and sample loss that can occur with other drying methods.</p><h3><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/215"><strong>Waters Oasis SPE</strong></a><strong>: Precision Evaporation for Enhanced Sensitivity</strong></h3><p><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/215"><strong>Waters Oasis SPE cartridges</strong></a> and plates are renowned for their broad analyte retention capabilities, in particular for polar compounds. Their SPE products consistently deliver consistent and pure quality for sample analysis [2]. Many of their protocols consistently emphasize the importance of proper solvent evaporation following elution [3].</p><h4><strong>Critical Nitrogen Blowdown Steps in Oasis Protocols:</strong></h4><p>In Waters' documented procedures for pesticide analysis, the protocol states: "<i><strong>Blow down the acetone extract with nitrogen to ca. 0.2 ml then make to 2 ml with pure water</strong></i>" [4]. This concentration step is essential for achieving the required detection limits of pesticide compounds like diuron and its metabolites. When using the Oasis HLB cartridges to process larger sample volumes (2 L versus 200 mL), the method requires: "<i><strong>Blow down the acetone extract with nitrogen to ca. 0.8 ml then make to 2 ml with pure water</strong></i>" [4]. This increased degree of sample pre-concentration dramatically enhances the analytical sensitivity and is particularly important when analyzing trace-level environmental contaminants. The Waters protocols emphasize that this evaporation step must be performed under controlled conditions to aid in the prevention of analyte loss, making nitrogen blowdown the preferred method over thermal evaporation techniques.</p><h3><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?mainauthorItems=10&amp;search=bond+elut"><strong>Agilent Bond Elut</strong></a><strong>: Streamlined Workflows with Controlled Evaporation</strong></h3><p>With over 40 different sorbent capabilities, Agilent's Bond Elut product line offers versatile solutions for a wide range of sample types and applications [5]. The company's method development guides consistently reference evaporation steps as critical for optimal results. Whether processing <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/environmental-sample-preparation"><strong>environmental samples</strong></a>, pharmaceutical matrices, or targeting polar and nonpolar analytes, the evaporation step remains a consistently critical factor in ensuring a method's success [5].</p><h4><strong>Nitrogen Evaporation in Bond Elut Protocol:</strong></h4><p>For Bond Elut PPL applications targeting polar compounds found within drinking water, Agilent's protocol specifies: "<i><strong>Dry the eluent under in 35 °C water bath, then reconstitute with 2 mL 10:90 MeOH/H2O</strong></i>" [6]. This controlled evaporation at moderate temperature ensures complete solvent removal while maintaining analyte integrity. The Bond Elut methodology emphasizes that the nitrogen drying step is particularly important when transitioning from organic elution solvents to aqueous-based mobile phases for <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/preparing-samples-for-lc-ms/ms-analysis"><strong>LC/MS/MS analysis</strong></a> [6]. This solvent exchange is impossible without complete evaporation of the initial organic eluent.</p><h3><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=136&amp;manufacturerItems=50"><strong>Phenomenex Strata</strong></a><strong>: Advanced Polymeric Performance Enhanced by Proper Evaporation</strong></h3><p>Phenomenex Strata products, particularly their <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=136&amp;manufacturerItems=50&amp;search=strata+x"><strong>Strata-X</strong></a> polymeric phases, have revolutionized SPE through water-wettable sorbents designed to work effectively with aqueous-based solutions with a simplified protocol [7]. However, even these advanced materials require proper post-extraction handling to achieve optimal results.</p><h4><strong>Strata-X Protocol Requirements:</strong></h4><p>Phenomenex documentation for their Strata-X PRO plates specifically instructs: "<i><strong>Dry: </strong></i><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/article/5411"><i><strong>Evaporate the extract to dryness</strong></i></a><i><strong> under a gentle stream of nitrogen at room temperature</strong></i>" [8]. This room-temperature evaporation is particularly important for thermally labile compounds that might degrade under increased temperatures.</p><h4><strong>Specialized Applications:</strong></h4><p>For Strata Activated Carbon applications targeting nitrosamines and other polar analytes, the protocol requires: "<i><strong>Evaporate solvent under Nitrogen to required volume and reconstitute with Methylene Chloride</strong></i>" [9]. This controlled evaporation is essential for achieving the trace detection limits required for these potential carcinogens.</p><p>The matrix removal technology within the Strata product line makes the nitrogen blowdown step even more critical. This step ensures complete removal of interfering matrix components from the eluent that could compromise downstream analysis [10].</p><h3><strong>Technical Considerations for Optimal Results</strong></h3><ul><li><strong>Temperature Control:</strong> All three manufacturers emphasize controlled temperature during nitrogen evaporation. Waters and Agilent protocols frequently specify 35°C water baths, while Phenomenex often recommends room temperature evaporation [4, 6, 8].</li><li><strong>Flow Rate Management:</strong> Gentle nitrogen flow is recommended across many manufacturers to reduce and prevent analyte loss through splashing or mechanical carryover. Excessive flow rates can lead to incomplete evaporation or sample loss.</li><li><strong>Timing Optimization:</strong> Complete solvent removal is essential, but over-drying can lead to analyte degradation or potentially irreversible adsorption to container walls. Protocols typically specify evaporation "to dryness" or to specific volumes [4, 8].</li></ul><h3><br><strong>A Nitrogen Blowdown Solution for the Leading SPE Platforms</strong></h3><p>The importance of nitrogen blowdown in an SPE workflow has been well established. To support this critical step, Organomation offers the following solutions:</p><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?manufacturerItems=540&amp;search=n-evap"><strong>N-EVAP Nitrogen Evaporator</strong></a></h4><ul><li><strong>Analyte Preservation: </strong>The gentle nitrogen blowdown helps preserve heat-sensitive analytes that may degrade when exposed to high temperatures.</li><li><strong>Solvent Removal Flexibility: </strong>This system is compatible with a range of tube sizes, enabling researchers to process varying sample volumes tailored to specific laboratory needs.</li><li><strong>Controlled Evaporation: </strong>Individual gas flow control at each sample position ensures precise and consistent sample preparation, which is essential for obtaining reliable data.</li><li><strong>Temperature Control: </strong>Water bath models are available with a wide temperature range enabling optimization for use of different solvents needed for varying SPE sorbents.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organomation_45_Position_N_EVAP_Nitrogen_Evaporator_5_20078e3969.jpg" alt="Organomation: 45 Position N-EVAP Nitrogen Evaporator" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organomation_45_Position_N_EVAP_Nitrogen_Evaporator_5_20078e3969.jpg 156w," sizes="100vw" width="1400" height="1400"></p><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?manufacturerItems=540&amp;search=multivap"><strong>MULTIVAP Batch Evaporator</strong></a></h4><ul><li><strong>Batch Capability:</strong> Some systems can process up to 100 samples simultaneously, making them essential for large-scale laboratory operations.</li><li><strong>Sample Standardization: </strong>Provides consistent evaporation conditions across samples, reducing sample variability which can skew interpretation.</li><li><strong>Analyte Integrity:</strong> Gentle nitrogen dry down protects delicate analytes from degradation.</li><li><strong>Efficiency: </strong>This system significantly reduces sample preparation time, allowing for faster results and turnaround time in clinical settings.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organomation_48_Position_MULTIVAP_Nitrogen_Evaporator_2_b46408a225.jpg" alt="Organomation: 48 Position MULTIVAP Nitrogen Evaporator" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organomation_48_Position_MULTIVAP_Nitrogen_Evaporator_2_b46408a225.jpg 156w," sizes="100vw" width="1400" height="1400"></p><h4><strong>Integration with Modern Laboratory Workflows</strong></h4><p>Modern laboratories increasingly rely on automated nitrogen evaporation systems that can process multiple samples simultaneously while also maintaining precise control over temperature, flow rate, and timing. Additionally, these systems integrate seamlessly with the 96-well plate formats offered by all three manufacturers, enabling high-throughput sample preparation. The combination of advanced SPE materials from Waters, Agilent, and Phenomenex with controlled nitrogen blowdown creates a powerful sample preparation platform that delivers the sensitivity, reproducibility, and throughput required for today's analytical challenges.</p><h4><strong>Conclusion</strong></h4><p>Nitrogen blowdown is not merely an optional step in SPE workflows, it is a critical component that enables the full potential of Waters Oasis, Agilent Bond Elut, and Phenomenex Strata products. Nitrogen blowdown ensures optimal analyte concentration, solvent exchange, and method sensitivity through gentle evaporation. Its versatility makes it applicable to diverse fields, including environmental monitoring and pharmaceutical analysis.</p><p>Laboratories investing in high-quality SPE products should equally prioritize incorporating proper nitrogen evaporation equipment and protocols to maximize their analytical capabilities and ensure consistent, reliable results. Organomation is a trusted provider of precision nitrogen evaporators, offering reliable solutions tailored to laboratory needs.</p>

The Critical Role of Nitrogen Blowdown in SPE Sample Preparation

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Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

Efficient Sample Concentration for Micropollutant Surveillance Under EU Directive 2024/3019

The Critical Role of Nitrogen Blowdown in SPE Sample Preparation

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