<p><strong>Solid Phase Extraction (SPE) is one of the most highly selective sample preparation methods, meaning that the targeted analytes and their matrices must be considered when choosing the correct SPE sorbent and format. Drying down the sorbent before elution is an important step.</strong></p><ul><li>Wash solvents are used to flush out unwanted compounds (i.e., contaminants). If the wash solvent is not completely removed, then residual wash solvent could contaminate the final elution.</li><li>If you do not dry the SPE sufficiently, it could make the final solution less concentrated and result in a reduction in sensitivity.</li><li>Drying helps physically break down the interactions between the sorbent and analyte for a more concentrated extract.</li></ul><p>After the wash solvent has been passed through the cartridge, continue to apply negative pressure (vacuum) or positive pressure. Use this pressure to dry the cartridge for 2 to 5 minutes (or until dry). Turn off the pressure and wipe the tips of the manifold needles to remove any residual solvent.</p><h5><strong>Notes</strong></h5><ol><li><strong>Reproducibility:</strong> Drying removes traces of residual sample/matrix and wash solvent from the sorbent. This produces a more concentrated final extract with a consistent volume and composition and yields better reproducibility and higher recoveries.</li><li><strong>Immiscibility:</strong> Drying is especially critical when using elution solvents that are immiscible with water (e.g. hexane, ethyl acetate, and methylene chloride). Residual water in the sorbent bed may prevent dissolution of the analyte in the elution solvent, resulting in low recoveries and irreproducibility.</li><li><strong>Over-drying: </strong>Avoid over-drying the sorbent, since in some cases, analyte recovery may decrease with excessive vacuum or drying times above 5 minutes. Dry cartridges look distinctly different from moist ones. Make a note of the cartridge appearance before and after conditioning. Also, you could touch the cartridge while it is drying; wet cartridges feel colder than dry cartridges.&nbsp;</li></ol>

Why Is It Necessary to Dry the SPE Sorbent Before Elution?

<h3><strong>Mastering Ion-Pair Reversed-Phase Chromatography for Oligonucleotide Analysis</strong></h3><h4><strong>Why Purity Is Critical in the Oligonucleotide Era</strong></h4><p>Oligonucleotides — short, synthetic strands of DNA or RNA — are central to modern biotechnology. They power gene therapies, advanced diagnostics, and cutting-edge molecular research. However, before these molecules can be used in clinical or research settings, their purity and structural integrity must be thoroughly verified. High-resolution chromatographic analysis plays a crucial role in ensuring quality and safety.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_1_Separation_Example_of_Oligonucleotides_5577514561.jpg" alt="KNAUER: Figure 1 - Separation Example of Oligonucleotides." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_1_Separation_Example_of_Oligonucleotides_5577514561.jpg 245w," sizes="100vw" width="1024" height="368"></p><h4><strong>Understanding Ion-Pair Reversed-Phase (IP-RP) Chromatography</strong></h4><p>For scientists involved in oligonucleotide synthesis and characterization, Ion-Pair Reversed-Phase Chromatography (IP-RP) is one of the most effective analytical tools available.</p><p>Unlike separation techniques that rely solely on charge differences, IP-RP combines:</p><ul><li>Ionic interactions</li><li>Hydrophobic interactions</li></ul><p>This dual retention mechanism enables exceptional resolution — even for oligonucleotides that differ by only a single nucleotide or subtle chemical modification. Whether assessing synthesis efficiency or purifying therapeutic-grade material, IP-RP provides reliable, reproducible separations.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_2_Overview_of_IP_RP_Mode_prinicple_ecd54b6e9c.jpg" alt="KNAUER: Figure 2 - Overview of IP-RP Mode prinicple." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_2_Overview_of_IP_RP_Mode_prinicple_ecd54b6e9c.jpg 245w," sizes="100vw" width="1024" height="456"></p><h4><strong>The Principle Behind Ion-Pairing</strong></h4><p>Oligonucleotides possess a highly negatively charged phosphate backbone. In a traditional reversed-phase system, such hydrophilic, charged molecules would show little retention.</p><p>IP-RP overcomes this limitation by introducing a positively charged ion-pairing reagent into the mobile phase. The cation associates with the negatively charged oligonucleotide, forming a transient ion pair with increased hydrophobic character. This modified complex can now interact with the hydrophobic stationary phase.</p><p>Retention strength depends on:</p><ul><li>The hydrophobicity of the ion-pair reagent</li><li>The strength of ionic interaction</li><li>The applied organic gradient</li></ul><p>During gradient elution (commonly using acetonitrile), analytes are released in a controlled manner according to size, sequence, and chemical modifications.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_3_Ion_Pair_Reversed_Phase_Principle_9a4fcd12f2.jpg" alt="KNAUER: Figure 3 - Ion-Pair Reversed Phase Principle." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_3_Ion_Pair_Reversed_Phase_Principle_9a4fcd12f2.jpg 245w," sizes="100vw" width="1024" height="393"></p><h4><strong>Choosing the Right Ion-Pair Reagent</strong></h4><p>Successful IP-RP separation depends heavily on selecting an appropriate ion-pair reagent. Two key factors determine retention behavior:</p><ol><li>Alkyl chain length</li><li>Charge density</li></ol><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_4_Ion_Pair_Classification_eaad172a4e.jpg" alt="KNAUER: Figure 4 - Ion-Pair Classification." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_4_Ion_Pair_Classification_eaad172a4e.jpg 245w," sizes="100vw" width="1024" height="398"></p><h4><strong>Strong Cationic Ion-Pair Reagents</strong></h4><p>Ion-pair reagents with longer alkyl chains provide stronger hydrophobic interactions and increased retention. A widely used example is tetrabutylammonium (TBA⁺), frequently applied for strongly retained anionic analytes.</p><p>These reagents are particularly useful when high retention strength is required.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Table_1_Strong_Cationic_Ion_Pair_Reagents_8dbf00c57e.jpg" alt="KNAUER: Table 1 - Strong Cationic Ion-Pair Reagents." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Table_1_Strong_Cationic_Ion_Pair_Reagents_8dbf00c57e.jpg 245w," sizes="100vw" width="1024" height="396"></p><h4><strong>Volatile (Weaker) Ion-Pair Reagents</strong></h4><p>Short-chain ion-pair reagents generate weaker retention but offer a significant advantage: compatibility with LC–MS detection.</p><p>Triethylammonium (TEA⁺) is among the most commonly used reagents for oligonucleotide analysis, particularly when mass spectrometric detection is involved. Other options, such as diisopropylethylammonium (DIEA⁺), are also widely applied, often combined with HFIP to enhance MS performance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Table_2_Weak_Cationic_Ion_Pair_Reagents_6332a4975e.jpg" alt="KNAUER: Table 2 - Weak Cationic Ion-Pair Reagents." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Table_2_Weak_Cationic_Ion_Pair_Reagents_6332a4975e.jpg 245w," sizes="100vw" width="1024" height="283"></p><h4><strong>Building an IP-RP Method for Oligonucleotides</strong></h4><p>Developing a robust IP-RP method follows a logical sequence:</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Table_3_IP_RP_Method_Step_Procedure_for_Oligos_c2216c24a0.jpg" alt="KNAUER: Table 3 - IP-RP Method Step Procedure for Oligos." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Table_3_IP_RP_Method_Step_Procedure_for_Oligos_c2216c24a0.jpg 245w," sizes="100vw" width="1024" height="304"></p><h5><strong>1. Characterize the Analyte</strong></h5><p>Oligonucleotides typically contain 10–50+ nucleotides and exhibit high negative charge density. This necessitates a suitable cationic partner such as TEA⁺ or DIEA⁺.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_5_Cationic_Ion_Pair_Principle_for_Oligonucleotides_cb2dfb7457.jpg" alt="KNAUER: Figure 5 - Cationic Ion-Pair Principle for Oligonucleotides." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_5_Cationic_Ion_Pair_Principle_for_Oligonucleotides_cb2dfb7457.jpg 245w," sizes="100vw" width="512" height="320"></p><h5><strong>2. Select the Column</strong></h5><p>Use a reversed-phase column with:</p><ul><li>Large pore size (≈300 Å)</li><li>Appropriate internal diameter</li></ul><p>These parameters support the so-called “ON–OFF” retention mechanism — a bind-and-elute behavior where analytes are strongly retained until the gradient triggers rapid elution.</p><h5><strong>3. Optimize the Mobile Phase</strong></h5><p>A typical starting condition includes:</p><ul><li>10 mM TEA buffer at pH ~7</li><li>Acetonitrile as organic modifier</li></ul><p>Gradient programs from approximately 5% to 50% organic solvent over 15–30 minutes are commonly effective for complex oligonucleotide mixtures.</p><h5><strong>4. Adjust Retention Strength if Needed</strong></h5><p>To increase retention:</p><ul><li>Raise ion-pair concentration (up to ~100 mM if required)</li><li>Select a more hydrophobic ion-pair reagent</li></ul><h5><strong>5. Validate the Method</strong></h5><p>Ensure robustness, sensitivity, and reproducibility by carefully evaluating:</p><ul><li>UV chromatograms</li><li>MS traces</li><li>Peak shape and resolution</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Figure_6_UV_MS_traces_of_IP_RP_Oligonucleotide_Analysis_81faf4e9f0.jpg" alt="KNAUER: Figure 6 - UV-MS traces of IP-RP Oligonucleotide Analysis." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Figure_6_UV_MS_traces_of_IP_RP_Oligonucleotide_Analysis_81faf4e9f0.jpg 245w," sizes="100vw" width="1024" height="365"></p><h4><strong>Why IP-RP Is Considered the Gold Standard</strong></h4><p>Ion-Pair Reversed-Phase Chromatography uniquely combines the resolving power of reversed-phase LC with the ability to retain highly polar, charged biomolecules.</p><p>Its advantages include:</p><ul><li>Tunable selectivity</li><li>Compatibility with UV and MS detection</li><li>Scalability from analytical to preparative workflows</li><li>Applicability from research to pharmaceutical production</li></ul><p>By transforming highly charged oligonucleotides into hydrophobic ion-pair complexes, IP-RP enables precise and reproducible separations that would otherwise be impossible in conventional reversed-phase systems.</p><p>For these reasons, IP-RP is widely regarded as the benchmark technique for oligonucleotide analysis.</p><h4><strong>Final Thoughts</strong></h4><p>Mastering IP-RP is less intimidating than it may seem. A successful method comes down to:</p><ul><li>Selecting the right ion-pair reagent</li><li>Choosing a suitable column</li><li>Optimizing gradient conditions</li><li>Fine-tuning temperature and concentration parameters</li></ul><p>With thoughtful method development, IP-RP delivers sharp peaks, clean separations, and reliable performance — fully compatible with modern mass spectrometry workflows and ready to meet the demands of advanced oligonucleotide analysis.</p>

Oligos Made Easy - Part 3: IP-RP

News from LabRulezLCMS Library - Week 08, 2026

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Phenomenex is a global technology leader committed to developing novel analytical chemistry solutions that solve the separation and purification challenges of researchers in industrial, government and academic laboratories.

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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.

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Waters SELECT SERIES Cyclic IMS

The SELECT SERIES Cyclic IMS combines novel cyclic ion mobility separation with state-of-the-art, high performance, time-of-flight mass spectrometry.

<div><div id="title-c6692d35e8" data-locator="title-with-text"><h3><strong>Endless possibilities. Limitless research.</strong></h3></div></div><div><div id="text-ba9d3d94da" data-locator="text"><p><strong>Developed through focused collaboration, the SELECT SERIES Cyclic IMS combines novel cyclic ion mobility separation with state-of-the-art, high performance, time-of-flight mass spectrometry, enabling leading researchers to unlock the potential in scientific discovery.</strong></p><p>The SELECT SERIES Cyclic IMS enables selection of ions by both mass and mobility, a unique functionality of <strong>Cyclic Ion Mobility (cIM)</strong> that provides unparalleled flexibility and capabilities for research studies in both academia and industry. With ion mobility and mass spectrometry, you can separate by shape as well as&nbsp;<i>m/z</i>&nbsp;for separation of isomers, measure the <strong>Collisional Cross Section (CCS)</strong> of an ion, and achieve significantly cleaner mass spectral data.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SELECT_SERIES_Cyclic_IMS_Novel_Cyclic_Ion_Mobility_c_IM_Technology_13abf6dd9b.jpg" alt="Waters SELECT SERIES Cyclic IMS: Novel Cyclic Ion Mobility (cIM) Technology." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SELECT_SERIES_Cyclic_IMS_Novel_Cyclic_Ion_Mobility_c_IM_Technology_13abf6dd9b.jpg 234w," sizes="100vw" width="1024" height="682"></p><h3><strong>Overview</strong></h3><div data-locator="section-container-body"><div><div><div data-locator="layoutcontainer-"><div><div id="text-26eab4b89b" data-locator="text"><ul><li>Combine <strong>cyclic ion mobility (cIM) separation</strong> with <strong>ToF mass spectrometry</strong></li><li>Separate more than ever before with ultimate ion mobility resolution for complete confidence</li><li>Perform <strong>unique IMS<sup>n</sup> experiments</strong> for increased selectivity and advanced characterization</li><li>Enable <strong>pre-mobility mass selection</strong> and <strong>mobility selection of precursor and product ions</strong></li><li>Achieve increased experimental flexibility for solving complex problems with three distinct fragmentation regions</li></ul></div></div><div><div id="text-36ff553b5f" data-locator="text"><h3><strong>Recommended Use</strong></h3><p>For identifying and rapidly monitoring co-eluting, isomeric metabolites in chemical reactions</p><blockquote><p class="cke-user_style-important"><strong>Video: </strong><a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=nauwVH0L91o"><strong>Waters SELECT SERIES Cyclic IMS</strong></a></p></blockquote><div><div id="text-8469d7776e" data-locator="text"><h3 data-locator="modal-title"><strong>Discover more with ultimate ion mobility resolution</strong></h3><p>The instrument design and control software enable a range of experiments, including acquisition of Tof data, Single pass ion mobility, and the ability to scale mobility resolution to match the complexity of a sample. Ion mobility resolution increases with the length of the mobility device and therefore with the number of passes.</p><figure class="image"><img style="aspect-ratio:1024/682;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SELECT_SERIES_Cyclic_IMS_IMS_resolution_increases_with_the_number_of_passes_around_the_c_IM_device_121719dbe0.jpg" alt="Waters SELECT SERIES Cyclic IMS: IMS resolution increases with the number of passes around the cIM device. Demonstrated here by the separation of reverse sequence peptides SDGRG and GRGDS. The Arrival Time Distributions (ATDs) obtained after 100 passes around the device are inset." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SELECT_SERIES_Cyclic_IMS_IMS_resolution_increases_with_the_number_of_passes_around_the_c_IM_device_121719dbe0.jpg 234w," sizes="100vw" width="1024" height="682"></figure><div><div id="text-bb2fb9f91c" data-locator="text"><h3 data-locator="modal-title"><strong>Unlock the potential in scientific discovery</strong></h3><p>The unique instrument design of the SELECT SERIES Cyclic IMS&nbsp;facilitates advanced ion mobility experiments like IMS<sup>n</sup>&nbsp;isolation. IMS<sup>n</sup>&nbsp;isolation&nbsp;extends the resolution of a specific mobility range,&nbsp;<i>e.g.,</i>&nbsp;ions of a specific species. Eject ions (without acquisition) outside of the desired mobility range, leaving the remaining species in the cIM to continue the separation process. This “trimming” approach can be undertaken numerous times and can be used, for example, to increase specificity of the selected ions or to prevent “wrap-around” in the cIM where high mobility ions catch up with low mobility ions in multi-pass experiments. Multiple cyclic sequences of different numbers of passes can be defined in one, multi-pass LC-MS method, increasing productivity by reducing the need for multiple injections of the same sample.</p></div></div><figure class="image"><img style="aspect-ratio:1024/578;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SELECT_SERIES_Cyclic_IMS_Investigation_into_acyl_glucuronides_via_infusion_f3bf2c67e2.jpg" alt="Waters SELECT SERIES Cyclic IMS: Investigation into acyl glucuronides via infusion. Slicing enables further IMS separation of target metabolite (blue region) of interest and other ions can be ejected. Increasing the IMS resolution reveals an additional 4-O acyl. In collaboration with Imperial College London – Ian D. Wilson." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SELECT_SERIES_Cyclic_IMS_Investigation_into_acyl_glucuronides_via_infusion_f3bf2c67e2.jpg 245w," sizes="100vw" width="1024" height="578"></figure><div><div id="text-78a4dc4d5e" data-locator="text"><h3 data-locator="modal-title"><strong>Undertake advanced structural characterization</strong></h3><p><strong>IMS<sup>n</sup>&nbsp;activation</strong>&nbsp;is ideal for <strong>advanced structural characterization</strong>. During mobility separation, excise a segment of the mobility separated species and send the ions to the pre array storage device. Unwanted ions are ejected, and the stored ions are then re-injected into the array under collision induced activation/dis-sociation conditions, as required, and subsequent mobility separation performed. The product ions can then be sent to the&nbsp;Tof<i>&nbsp;</i>for detection or can undergo further rounds of mobility selection providing the unique IMS<sup>n</sup>&nbsp;capability.</p></div></div><div><div id="text-079d02ceb8" data-locator="text"><h3 data-locator="modal-title"><strong>Imaging mass spectrometry with DESI XS and Cyclic IMS</strong></h3><p>The unique combination of&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?instrumentationItems=26&amp;mainauthorItems=5&amp;search=DESI+XS"><strong>DESI XS</strong></a><strong>&nbsp;</strong>with SELECT SERIES Cyclic IMS provides ultimate levels of specificity for <strong>MS imaging</strong> approaches. DESI XS produces a visual map of the spatial distribution of a wide range of analytes, for example small molecule drugs, metabolites, and lipids across the surface of a tissue sample, and the unique capabilities and modes of acquisition of Cyclic IMS enable comprehensive in-depth experiments to be performed.</p></div></div><div><div id="text-673d117887" data-locator="text"><h3 data-locator="modal-title"><strong>Increased sensitivity provides confidence in what you find</strong></h3><p>To complement the novel <strong>Cyclic Ion Mobility</strong> capability and for complete confidence in your data, the&nbsp;SELECT SERIES&nbsp;Cyclic IMS is equipped with the latest <strong>ToF technology</strong>. The XS transfer device maintains the fidelity of the ion mobility separation while simultaneously conditioning the ion beam for the absolute best time-of-flight performance. The new offset oa-Tof with dual gain detection system <strong>provides improved sensitivity, resolution &gt;100,000 (FWHM), reliable accurate exact mass measurements</strong> (low ppm), and <strong>improved dynamic range</strong>.</p><figure class="image"><img style="aspect-ratio:1024/682;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Mass_spectrum_highlighting_resolution_of_100_000_FWHM_on_the_7_charge_state_of_monomeric_9ff8f53204.jpg" alt="Waters SELECT SERIES Cyclic IMS: Mass spectrum highlighting resolution of >100,000 (FWHM) on the 7+ charge state of monomeric." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Mass_spectrum_highlighting_resolution_of_100_000_FWHM_on_the_7_charge_state_of_monomeric_9ff8f53204.jpg 234w," sizes="100vw" width="1024" height="682"></figure></div></div></div></div></div></div></div></div></div></div></div></div>

Waters SYNAPT XS High Resolution Mass Spectrometer

The SYNAPT XS Ion Mobility Time-of-Flight Mass Spectrometer provides ultimate flexibility, offering greater freedom of analytical choice to support scientific creativity and technical success for any application.

<div><div><h4><strong>Ultimate flexibility for deeper discovery</strong></h4></div></div><div><div><p><strong>In the arena of scientific discovery, the slow pace of advancement and escalating costs of research can prove to be a challenge. Unlike competitor systems with restricted inlet options, scan function limitations, or requiring multiple platforms, only Waters offers an all-encompassing high-performing LC-MS solution, the SYNAPT XS mass spectrometer, for ultimate flexibility and greater freedom of analytical choice – supporting scientific creativity and technical success for any application.</strong></p><ul><li><strong>Novel technology building blocks deliver cutting-edge analytical performance</strong></li><li><strong>SONAR</strong> and <strong>HDMSE</strong> provide a unique toolkit for interrogating complex mixtures</li><li><strong>Ion mobility</strong> multiplies peak capacity and selectivity of analysis</li><li><strong>CCS measurements</strong> increase security of compound identification</li><li><strong>Deeper discovery in Mass Spectrometry Imaging</strong> with<strong> </strong><a target="_blank" rel="noopener noreferrer" href="https://www.waters.com/waters/Full-Spectrum-Molecular-Imaging-/nav.htm?cid=135070661"><strong>Full Spectrum Molecular Imaging</strong></a> enabled by <a target="_blank" rel="noopener noreferrer" href="https://www.waters.com/waters/DESI-XS---Desorption-Electrospray-Ionization-/nav.htm?cid=135047466"><strong>DESI XS</strong></a> and MALDI</li></ul><h4><strong>Overview</strong></h4><div><div><div><div><ul><li><strong>Serve the broadest range of applications </strong>with the most extensive range of chromatograph inlets for ultimate flexibility</li><li><strong>Attain fragment ion information for every detectable component</strong> for unambiguous confirmation of compound identity with DIA modes <strong>SONAR</strong>, MSE, and <strong>HDMSE</strong></li><li><strong>Generate rich fragmentation data</strong> from highly complex samples in all acquisition modes including DDA</li><li>Simplify and streamline the mass spectral imaging workflow and deliver multi-layered, information-rich data with multiple imaging techniques and accompanying High Definition Imaging (HDI) Software</li><li><strong>Achieve automated higher order structure determination </strong>thorough confident identification, intact mass analysis, and best-in-class reproducibility</li><li><strong>Enhance MS/MS possibilities</strong> using complementary fragmentation techniques with high resolution and accurate mass measurements</li></ul></div></div><div><div><h5><strong>Recommended Use</strong></h5><p>For deeper discovery by aligning complimentary workflows on a single <strong>Ion mobility</strong> enabled time-of-flight mass spectrometer with the flexibility of multiple ion sources and acquisition modes.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_4_696d77ce2b.jpg" alt="Waters SYNAPT XS High Resolution Mass Spectrometer: The Waters SYNAPT XS offers flexibility and freedom of analytical choice with an extensive range of chromatographic inlets." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_4_696d77ce2b.jpg 234w," sizes="100vw" width="1024" height="682"></p><div><div><h3><strong>Cutting edge performance with novel technology</strong></h3><p>With technology building blocks inherited from the <strong>Waters Advanced Mass Spectrometry</strong> <strong>SELECT SERIES</strong>, advanced innovation is built-in, ensuring scientists using this platform are at the cutting edge of mass spectrometry while retaining the ease of use and established end-to-end workflows for which the <strong>SYNAPT </strong>is well known.</p><ul><li><strong>StepWave&nbsp;XS -&nbsp;</strong>Redesigned segmented quadrupole transfer optics provide enhanced sensitivity for challenging compounds while further improving levels of analytical robustness.</li><li><strong>Extended ToF -&nbsp;</strong>Delivers UPLC-compatible mass resolution, matrix-tolerant dynamic range, and quantitative results for the most complex samples, while offering superior specifications to previous SYNAPT models.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_9f19abb382.jpg" alt="Waters SYNAPT XS High Resolution Mass Spectrometer: SYNAPT XS schematic." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_9f19abb382.jpg 245w," sizes="100vw" width="1024" height="546"></p></div></div><div><div><h3><strong>Interrogate complex mixtures with a unique toolkit</strong></h3><p>A complete analytical strategy requires the combination of appropriate complementary techniques to see the bigger picture. With both <strong>SONAR</strong> and IMS-based <strong>data independent acquisition</strong> (DIA) modes of operation on the SYNAPT XS, the discovery analyst is in a unique position to interrogate complex mixtures by complementary mechanisms. Both types of acquisition increase analytical <strong>peak capacity</strong>, providing ‘clean and clear’ fragmentation data, but based on different molecular properties. This provides a truly unique investigative toolbox for the in-depth interrogation of complex mixtures.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_2_9179e575a4.jpg" alt="Waters SYNAPT XS High Resolution Mass Spectrometer: During each scan the quadrupole separates co-eluting precursor masses by scanning the mass range, and transiting them in sequence. Fragment ions from different precursors can then be recorded separately and assigned with confidence." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_2_9179e575a4.jpg 245w," sizes="100vw" width="1024" height="593"></p></div></div><div><div><h3><strong>Discover more with ion mobility and CSS measurement</strong></h3><p>Conventional mass spectrometers separate components based on m/z. The SYNAPT XS also allows separation of molecules according to<strong> their size, shape, and charge during ion mobility experiments as a function of their collisional cross section</strong> (CCS). As well as ion mobility offering an additional dimension of resolution, multiplying <strong>peak capacity</strong>, and <strong>selectivity of analysis</strong> the measurement of CCS offers additional molecular identifiers. The measured CCS of an ion can be used to help confirm an ion’s identity or investigate its structure. The inclusion of ion mobility significantly increases the extent and confidence with which a scientist can profile complex mixtures and complex molecules – dramatically enhancing sample definition.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_3_2240bff527.jpg" alt="Waters SYNAPT XS High Resolution Mass Spectrometer: Retention and drift time principle ion mobility enabled data-independent LC-HDMSE analysis (LC-DIA-IM-MS)." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_3_2240bff527.jpg 204w," sizes="100vw" width="1024" height="784"></p></div></div><div><div><h3><strong>Achieve ultra-confident structural characterization of components</strong></h3><p>Time aligned parallel (TAP) fragmentation is an acquisition mode unique to the T-Wave IMS design. It permits users to take the advantage of the <strong>TriWave configuration</strong>, which allows the pre-IMS T-Wave and post-IMS T-Wave to operate as two separate collision cells. The resultant CID-IMS-CID instrumental operation helps to provide ultra-confident structural characterization of components. <strong>TAP fragmentation</strong> provides a distinct advantage for building a complete structure, through superior fragment ion coverage, sensitivity, and accuracy compared to traditional MSⁿ or MS/MS techniques.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_5_4dd33f1ab5.jpg" alt="Waters SYNAPT XS High Resolution Mass Spectrometer: Schematic showing Time Aligned Parallel Fragmentation. " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Waters_SYNAPT_XS_High_Resolution_Mass_Spectrometer_5_4dd33f1ab5.jpg 234w," sizes="100vw" width="1024" height="682"></p></div></div></div></div></div></div></div></div>

Products focused on Ion Mobility - page 1

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