Quantifying steroids in biological matrices has always presented analytical challenges. Complex structures, isobaric interferences, and matrix effects often limit accuracy and throughput — demanding a new approach beyond incremental improvements.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Advancing_Steroid_Quantification_Unlocking_Sensitivity_and_Selectivity_with_the_Thermo_Scientific_Stellar_Mass_Spectrometer_6e03ce7f59.jpg" alt="Thermo Fisher Scientific: Advancing Steroid Quantification: Unlocking Sensitivity and Selectivity with the Thermo Scientific Stellar Mass Spectrometer." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Advancing_Steroid_Quantification_Unlocking_Sensitivity_and_Selectivity_with_the_Thermo_Scientific_Stellar_Mass_Spectrometer_6e03ce7f59.jpg 245w," sizes="100vw" width="1024" height="512">The<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1149"> Thermo Scientific Stellar MS</a> redefines how analysts approach steroid quantification, enabling rapid method optimization through advanced scanning flexibility, complementary fragmentation mechanisms, and enhanced selectivity.Rather than focusing on a single metric, this application note demonstrates how researchers can quickly develop more effective methods by leveraging the full capability of the Stellar MS to characterize compounds comprehensively in a single acquisition.<h3>A new paradigm for analytical quantitation</h3>Traditional LC-MS approaches often rely on incremental improvements in sensitivity or speed. Stellar MS instead provides a new analytical framework, designed to optimize every parameter of quantitative method creation.Key attributes include:<ol><li>PRM vs. SRM/MRM — improving instrument efficiency Parallel Reaction Monitoring (PRM) on Stellar MS provides comprehensive ion information for each target steroid, improving quantitation accuracy and efficiency over traditional MRM methods.</li><li>Complementary dissociation mechanisms — HCD and CID Stellar’s unique ability to combine beam-type (HCD) and resonant (CID) dissociation ensures full coverage of all 17 targeted steroids. This dual-mode approach effectively overcomes neutral water loss product ions — one of the key challenges in steroid analysis.</li><li>Next-level selectivity — MS² to MS³ transition The platform’s ability to perform MS³ experiments enhances selectivity and confidence, particularly in complex biological matrices, where interferences are common.</li><li>Product ion accumulation vs. dwell time — improved ion ratios and sensitivity By accumulating product ions rather than relying on fixed dwell times, Stellar MS achieves superior ion ratio precision and reproducibility — even at low spiking levels — without sacrificing throughput.</li></ol>&nbsp;<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Advancing_Steroid_Quantification_Unlocking_Sensitivity_and_Selectivity_with_the_Thermo_Scientific_Stellar_Mass_Spectrometer_2_21e509451a.jpg" alt="Thermo Fisher Scientific: Advancing Steroid Quantification: Unlocking Sensitivity and Selectivity with the Thermo Scientific Stellar Mass Spectrometer: Figure 1. Representative EIC of 17 steroids in human serum using the Thermo Scientific Stellar mass spectrometer." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Advancing_Steroid_Quantification_Unlocking_Sensitivity_and_Selectivity_with_the_Thermo_Scientific_Stellar_Mass_Spectrometer_2_21e509451a.jpg 245w," sizes="100vw" width="800" height="412"><h3>From characterization to confident method creation</h3>The power of Stellar MS lies in its comprehensive acquisition strategy. In this application note, a single injection per spiking level generated 125 distinct scan events, combining:<ul><li>HCD and CID MS² experiments</li><li>Targeted MS³ scans</li><li>Positive/negative polarity switching</li></ul>This workflow enables analysts to rapidly evaluate:<ol><li>Which dissociation mechanism produces the most informative spectra</li><li>Whether MS² or MS³ is best suited for each compound</li><li>The optimal product ions for confident post-acquisition quantitation</li></ol>By providing this complete dataset in a single run, Stellar MS dramatically accelerates method optimization and validation, supporting more efficient and reliable quantitation strategies.<h3>Driving method development efficiency</h3>The real strength of the Stellar MS isn’t just its speed or sensitivity — it’s the ability to experiment, compare, and decide in one workflow. Through simultaneous HCD/CID fragmentation, MS² and MS³ switching, and polarity control, users can determine the optimal analytical conditions across complex steroid panels quickly and confidently.This approach helps labs:<ul><li>Reduce development time</li><li>Maximize data quality</li><li>Improve long-term robustness and reproducibility</li></ul><h3>Conclusion</h3>The Stellar MS platform empowers analytical scientists to move beyond incremental performance metrics toward methodological innovation.By integrating comprehensive characterization and advanced scanning control, it enables faster, more confident decisions in quantitative steroid analysis — setting a new benchmark for flexibility and precision in LC-MS.Ask the Experts: On-Demand WebinarLearn more about how Stellar MS enhances steroid profiling and quantitative workflows. Watch the on-demand webinar where Thermo Fisher scientists discuss:<ul><li>Advanced method development strategies</li><li>Insights from the steroid panel dataset</li><li>Practical examples of leveraging Stellar’s flexibility for confident quantitation</li></ul><blockquote>Watch now: <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinar/5117">Unlocking the Power of Quantitative Analysis with Stellar MS</a>Read the full application note: <a target="_blank" rel="noopener noreferrer" href="https://lcms.cz/paper/32415">Selective and sensitive measurement of 17 steroids in human serum using a Stellar mass spectrometer</a></blockquote><ul><li>Learn more about <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/content/lifetech/global/en/home/industrial/mass-spectrometry/liquid-chromatography-mass-spectrometry-lc-ms/lc-ms-systems/orbitrap-lc-ms/stellar-mass-spectrometer/stellar-mass-spectrometer-applications.html">Stellar Mass Spectrometer applications</a></li><li>Visit us on&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/showcase/72003132/admin/dashboard/">LinkedIn:</a>&nbsp;#MassSpectrometry #ClinicalResearch #LCMS #StellarMS</li></ul><blockquote><h5>Dane Walker</h5>Dane Walker is Regional Marketing Manager at Thermo Fisher Scientific, focused on LC-MS systems across EMEA. With a PhD in Surface Science and a background in scientific instrumentation, he blends technical expertise with strategic marketing to drive data-led campaigns. Passionate about communicating science and enabling innovation, Dane enjoys powerboating, cycling, stargazing, and talking endlessly about mass spectrometry.</blockquote>

Advancing Steroid Quantification: Unlocking Sensitivity and Selectivity with the Thermo Scientific Stellar Mass Spectrometer

<h4>The problem&nbsp;</h4>We live in a “global village” but we are all different and we use many different languages to communicate.&nbsp;Even when people speak the same language, the same words may be used with different meanings. See, for example, some different uses of the word “standard” in English – a normative document, a solution of known concentration or even a type of flag.&nbsp;Even in the same area of activity misunderstandings do occur which may result in a waste of time and money, or even worse consequences.&nbsp;When talking about laboratory tests, lack of a full understanding of key terms and inappropriate translations leaves room for different interpretations of stated requirements. For example, there have historically been a number of different but related uses of the term ‘detection limit’. This may lead to inadequate fulfilment of those requirements, thus becoming an obstacle to the production of analytical data that is fit for its intended use. A shared interpretation of concepts related to quality in measurement between laboratories and accreditation bodies is also crucial for a fair and harmonised approach to laboratory assessment across the world.&nbsp;<h4>A common language&nbsp;</h4>We need a common language; clear and unambiguous. We need a common vocabulary to provide consistent definitions of concepts with their associated terms. To this end, several organisations participate in a joint effort to develop and maintain an international vocabulary of metrology (VIM) [1], which aims to achieve a unique understanding of concepts related to measurements across all sectors. The VIM is a normative reference in the standards ISO/IEC 17025, ISO 15189 and ISO/IEC 17043, and is therefore a key document for all organisations seeking accreditation.&nbsp;<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_Standards_8d947dbd5f.jpg" alt="Eurachem: You talk, we understand – The way out of the tower of Babel_A common language" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_Standards_8d947dbd5f.jpg 245w," sizes="100vw" width="1126" height="499"><h4>Is this enough?&nbsp;</h4>For laboratory staff some problems still stand and need to be addressed:&nbsp;<ul><li>Many people are confused about both concepts and terms.&nbsp;</li><li>It may be difficult to understand the “formal” VIM definitions – they are short statements intended to apply to many different measurement sectors.</li><li>Translations into local languages may add to the confusion, e.g. if different terms are used in different sectors for the same VIM concept and the translator overlooks this issue.</li><li>Some substantial changes to terminology have been made in an attempt to accommodate chemical and biological measurements. Some “old” concepts still stand but have new names, e.g. “within laboratory reproducibility” vs. “intermediate precision”.&nbsp;</li></ul>To address these issues Eurachem has produced a guide [2] which provides an accessible reference containing simple and in context explanations of terms most relevant to analysts, with additional examples relating those concepts to chemical and biological measurements.&nbsp;<h4>Do you understand the meaning of these terms?&nbsp;</h4>Are you interested in a quantity or a quality? Depending on the answer, will you use a measurement procedure or an examination? Is method verification the same or less demanding than method validation? Do you need a calibration or just performance verification? Do you have a measurement standard in your laboratory? Is metrological traceability something you worry about? These are examples of the terms supporting the reliability of any measurement result that need to be clearly understood.&nbsp;<h5>Example – Accuracy, trueness, precision: are they synonyms?&nbsp;</h5><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_accuracy_231e1e005e.jpg" alt="Eurachem: You talk, we understand – The way out of the tower of Babel_Example – Accuracy, trueness, precision" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_accuracy_231e1e005e.jpg 146w," sizes="100vw" width="754" height="807"><ul><li>Closeness between measurement results (relating to the concept of precision)</li><li>Closeness of the average of the measurement results to a reference value (relating to the concept of trueness)&nbsp;</li><li>Closeness of an individual measurement result to the true value (relating to the concept of accuracy)&nbsp;</li></ul>The different situations in the figure show the effect of:&nbsp;<ol style="list-style-type:lower-latin;"><li>poor precision and trueness (imprecise and biased)&nbsp;</li><li>good precision, poor trueness (precise but biased)&nbsp;</li><li>poor precision, good trueness (imprecise but unbiased)&nbsp;</li><li>good precision and trueness (precise and unbiased)&nbsp;</li></ol>Improving both precision and trueness is expected to improve accuracy.&nbsp;<h4>Is all this relevant to you?&nbsp;</h4>Do you work in a laboratory, either as an analyst, quality manager or director? Are you involved in other activities related to analytical work, such as providing proficiency tests, producing reference materials or accrediting any such activity? Do you teach or study subjects related to measurements? Do you use measurement results or prescribe how to use them? If the answer is yes to any of these questions, the following reference documents are also for you.

You talk, we understand – The way out of the tower of Babel

Visit the LabRulez booth at <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/events/871">analytica 2026</a> in Munich, 24. - 27. March 2026! You can find us in Hall A1, Booth A1.506. At the booth, you will be able to explore live demonstrations of how the LabRulez portals work and see selected analytical instruments from our pre-owned marketplace section.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_at_Analytica_2026_Floor_plan_55e1057e03.jpg" alt="LabRulez at Analytica 2026: Hall A1 Floor Plan and Booth Location" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_at_Analytica_2026_Floor_plan_55e1057e03.jpg 245w," sizes="100vw" width="1516" height="881"><h3>Would you like to learn how the LabRulez portals work?</h3>➡︎ <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/">LabRulezLCMS</a> ➡︎ <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/">LabRulezGCMS</a> ➡︎ <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/">LabRulezICPMS</a><ul><li>A unique online solution for your marketing</li><li>A targeted audience from the analytical chemistry community</li><li>Modern technologies and a unique concept</li><li>Design optimized for most smart devices – PC, mobile, and tablet</li><li>Advanced statistical tools fully available to users</li></ul><h3>Services Offered</h3><h4>News + Company Updates</h4><ul><li>Publish news related to your instrumentation, applications, services, events, job openings, and more</li><li>News is shared both on our portals and across our social media channels</li></ul><h4>Library – All Documents in One Place</h4><ul><li>Applications, posters, presentations, technical articles, brochures, specifications</li><li>Fast and advanced search capabilities</li><li>Over 32,000 documents currently available in our database</li></ul><h4>Webinars</h4><ul><li>Upcoming and on-demand webinars from the field of analytical chemistry</li><li>More than 5,500 webinars covering chromatography, mass spectrometry, and spectroscopy</li></ul><h4>Careers</h4><ul><li>Targeted job listings in analytical chemistry</li><li>Clear filtering by specialization or location</li><li>Increased visibility for job postings</li></ul><h4>Companies</h4><ul><li>Company profile with key information and contacts</li><li>Integration of all your activities on our portal: News, Library documents, Webinars, Upcoming Events, Careers, and mentions by partners or customers</li><li>Connection to your Products listed on LabRulez portals</li></ul><h4>Products and Services</h4><ul><li>Comprehensive overview of instrumental techniques and services</li><li>Targeting the analytical chemistry community and customers in the growing online environment</li></ul><h4>Marketplace</h4><ul><li>Buying and selling pre-owned analytical equipment</li><li>We purchase analytical instrumentation of all brands and ages</li><li>Sell your equipment through LabRulez</li><li>Request and purchase complete systems, modules, or spare parts with warranty and service</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_at_analytica_2026_bazar_7edf4a0872.jpg" alt="LabRulez at analytica 2026" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_at_analytica_2026_bazar_7edf4a0872.jpg 88w," sizes="100vw" width="1600" height="2844"><h3>What Will Be on Display at Our Booth?</h3>Come and explore selected spare parts and modules from our marketplace section. These include both new, tested, and pre-owned items.<h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar">LabRulezLCMS Marketplace</a></h4>Spare parts for LC/MS:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=378">Vacuum turbo pumps for LC/MS</a></li></ul>Spare parts for HPLC:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=397">Degassers for HPLC/UHPLC</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=368&amp;search=valve">Automatic valves for HPLC</a></li><li>HPLC components for Agilent 1100, 1200, and 1260 Infinity II series</li></ul>Consumables:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=377">HPLC lamps</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=48">HPLC columns</a></li></ul><h4><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar">LabRulezGCMS Marketplace</a></h4>Spare parts for GC/MS:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=367&amp;search=turbo">Turbo pumps for GC/MS</a></li></ul>Spare parts for GC:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=366&amp;search=EPC">EPC modules</a></li></ul>Sample injection<ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar/432">Autosampler 7693A for GC</a></li></ul>Consumables:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=7">GC columns </a>and selected accessories</li></ul>

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Eurachem is a European network promoting international traceability of chemical measurements and good analytical practice. It provides expert guidance, supports method validation, uncertainty evaluation, proficiency testing, and facilitates discussion on technical and policy issues in analytical quality.

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LabRulez

Phenomenex Strata Screen-C Solid Phase Extraction (SPE)

Incorporates the hydrophobic selectivity of a C8 phase and strong cation exchange for the extraction of basic drugs from biological matrices.

Strong Cation-Exchange Solid Phase Extraction (SPE)Incorporates the hydrophobic selectivity of a C8 phase and strong cation exchange for the extraction of basic drugs from biological matrices.<figure class="image"><img style="aspect-ratio:500/150;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_Screen_C_b60bb2b7e4.webp" alt="Phenomenex: Strata Screen-C" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_Screen_C_b60bb2b7e4.webp 245w," sizes="100vw" width="500" height="150"></figure><ul><li>Surface Area (m²/g): 500, m²/g, 500 m²/g</li><li>Separation Mode: Multi-Mode</li><li>Pore Size: 70</li><li>Particle Size: 55</li><li>Recommended Use: Extraction of basic drugs from biological matrixes</li></ul><h4>Starting Method</h4><h5>Strata Screen-C Strong Cation-Exchange</h5><ul><li>Condition: 1 mL Methanol</li><li>Equilibrate: 1 mL Acidified Water</li><li>Load: Pretreated sample (acidified)</li><li>Wash 1: 1 mL 0.1N HCl in Water</li><li>Wash 2: 1 mL 0.1N HCl in Methanol, dry under vacuum for 2-5 min</li><li>Elute: 1 mL 5 % NH4OH in Methanol</li></ul>Based on 100 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.

Phenomenex Strata Screen-C GF Solid Phase Extraction (SPE)

Optimized for gravity flow, this sorbent offers hydrophobic selectivity from a C8 phase and strong cation-exchange properties for the extraction of basic drugs.

Strong Cation-Exchange Solid Phase Extraction (SPE)Optimized for gravity flow, this sorbent offers hydrophobic selectivity from a C8 phase and strong cation-exchange properties for the extraction of basic drugs from biological matrixes. Offers the selectivity of Screen-C in a gravity flow particle size for viscous samples.<h4>Starting Method</h4><h5>Strata Screen-C GF Strong Cation-Exchange</h5><ul><li>Condition: 1 mL Methanol</li><li>Equilibrate: 1 mL Acidified Water</li><li>Load: Pretreated sample (acidified)</li><li>Wash 1: 1 mL 0.1N HCl in Water</li><li>Wash 2: 1 mL 0.1N HCl in Methanol, dry under vacuum for 2-5 min</li><li>Elute: 1 mL 5 % NH4OH in Methanol</li></ul>Based on 100 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.

Phenomenex Strata X-AW Solid Phase Extraction (SPE)

Strata-X-AW mixed-mode SPE sorbent enables strong retention of acids (pKa ≤5) with 100% organic wash, ensuring maximum removal of interferences for clean, reliable extractions.

Weak Anion Mixed-Mode Solid Phase Extraction (SPE)A weak anion-exchange functionalized polymeric sorbent that allows for complete retention of acidic compounds with a pKa less than 5, making 100% organic wash conditions possible. A 100% organic wash ensures that the maximum amount of interferences are removed from the target compound.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_AW_SPE_cd5908db4d.jpg" alt="Phenomenex: Strata-X-AW SPE" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_AW_SPE_cd5908db4d.jpg 245w," sizes="100vw" width="500" height="268"><ul><li>Recommended Use: Extraction of acidic compounds, particularly strong acids</li></ul><h4>Starting Method</h4><h5>For Acids with pKa ≤ 5</h5><ul><li>Column: 1 mL Methanol</li><li>Equilibrate: 1 mL Water, pH 6-7</li><li>Load: Diluted Sample pH 6-7</li><li>Wash 1: 1 mL 25 mM Ammonium Acetate Buffered, pH 6-7</li><li>Wash 2: 1 mL Methanol</li><li>Elute Any Acid: 2x 500 µL 5 % NH4OH in Methanol</li><li>Elute Weak Acids: 2x 500 µL 5 % Formic Acid in Methanol</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_single_tube_435d45d0ad.jpg" alt="Phenomenex: Strata X single tube" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_single_tube_435d45d0ad.jpg 156w," sizes="100vw" width="1080" height="1080">Based on 30 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.<h4>Available Formats</h4><ul><li>96-Well-Plate</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_96_well_plate_9a66005814.jpg" alt="Phenomenex: Strata X 96-well plate" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_96_well_plate_9a66005814.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>1, 3, and 6mL Tubes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg" alt="Phenomenex: Strata X 1, 3, and 6mL Tubes" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>Giga Tubes (12-150mL Tubes)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg" alt="Phenomenex: Strata X Giga Tubes (12-150mL Tubes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg 156w," sizes="100vw" width="1080" height="1080">

Phenomenex Strata X-A Solid Phase Extraction (SPE)

Strata-X-A strong anion-exchange SPE retains weak acids (pKa >2) with 100% organic wash, maximizing interference removal. Available in tubes, plates, and giga formats.

Strong Anion Mixed-Mode Solid Phase Extraction (SPE)A strong anion-exchange functionalized polymeric sorbent that allows for complete retention of weakly acidic compounds with a pKa greater than 2, making 100% organic wash conditions possible. A 100% organic wash ensures that the maximum amount of interferences are removed from the target compound.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_A_SPE_e107f0b6bf.jpg" alt="Phenomenex: Strata-X-A SPE" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_A_SPE_e107f0b6bf.jpg 245w," sizes="100vw" width="500" height="268"><ul><li>Recommended Use: Extraction of weakly acidic compounds</li></ul><h4>Starting Method</h4><h5>For Acids with pKa &gt; 2</h5><ul><li>Column: 1 mL Methanol</li><li>Equilibrate: 1 mL Water, pH 6-7</li><li>Load: Diluted Sample pH 6-7</li><li>Wash 1: 1 mL 25 mM Ammonium Acetate Buffered, pH 6-7</li><li>Wash 2: 1 mL Methanol (collect this fraction to analyze Neutral/Bases)</li><li>Elute Acid: 2x 500 µL 5 % Formic Acid in Methanol</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_single_tube_435d45d0ad.jpg" alt="Phenomenex: Strata X single tube" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_single_tube_435d45d0ad.jpg 156w," sizes="100vw" width="1080" height="1080">Based on 30 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.<h4>Available Formats</h4><ul><li>96-Well-Plate</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_96_well_plate_9a66005814.jpg" alt="Phenomenex: Strata X 96-well plate" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_96_well_plate_9a66005814.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>1, 3, and 6mL Tubes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg" alt="Phenomenex: Strata X 1, 3, and 6mL Tubes" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>Giga Tubes (12-150mL Tubes)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg" alt="Phenomenex: Strata X Giga Tubes (12-150mL Tubes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg 156w," sizes="100vw" width="1080" height="1080">

Phenomenex Strata X-C Solid Phase Extraction (SPE)

Strata-X-C strong cation-exchange SPE retains basic compounds (pKa ≤10.5) with 100% organic wash for maximum cleanup. Offered in tubes, plates, and giga formats.

Strong Cation Mixed-Mode Solid Phase Extraction (SPE)A strong cation-exchange functionalized polymeric sorbent that allows for complete retention of basic compounds with a pKa less than 10.5, making 100% organic wash conditions possible. A 100% organic wash ensures that the maximum amount of interferences are removed from the target compound.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_C_SPE_4927d7340d.jpg" alt="Phenomenex: Strata-X-C SPE" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_C_SPE_4927d7340d.jpg 245w," sizes="100vw" width="500" height="268"><ul><li>Recommended Use: Extraction of weakly basic compounds</li></ul><h4>Starting Method</h4><h5>For Bases with pKa ≤ 10.5</h5><ul><li>Column: 1 mL Methanol</li><li>Equilibrate: 1 mL Acidified Water</li><li>Load: Diluted Acidified Sample</li><li>Wash 1: 1 mL 0.1 N HCI in Water (collect this fraction to analyze Polar Neutrals)</li><li>Wash 2: 1 mL 0.1 N HCI in Methanol (collect this fraction to analyze Neutrals/Acids)</li><li>Elute Bases: 2x 500 µL 5 % NH4OH in Methanol</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_single_tube_435d45d0ad.jpg" alt="Phenomenex: Strata X single tube" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_single_tube_435d45d0ad.jpg 156w," sizes="100vw" width="1080" height="1080">Based on 30 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.<h4>Available Formats</h4><ul><li>96-Well-Plate</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_96_well_plate_9a66005814.jpg" alt="Phenomenex: Strata X 96-well plate" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_96_well_plate_9a66005814.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>1, 3, and 6mL Tubes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg" alt="Phenomenex: Strata X 1, 3, and 6mL Tubes" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>Giga Tubes (12-150mL Tubes)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg" alt="Phenomenex: Strata X Giga Tubes (12-150mL Tubes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg 156w," sizes="100vw" width="1080" height="1080">

Phenomenex Strata X-CW Solid Phase Extraction (SPE)

Strata-X-CW weak cation-exchange SPE retains strong bases (pKa >8) with 100% organic wash for maximum cleanup. Available in tubes, 96-well plates, and giga formats.

Weak Cation Mixed-Mode Solid Phase Extraction (SPE)A weak cation-exchange functionalized polymeric sorbent that allows for complete retention of basic compounds with a pKa greater than 8, making 100% organic wash conditions possible. A 100% organic wash ensures that the maximum amount of interferences are removed from the target compound.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_CW_SPE_b16a0e0baf.jpg" alt="Phenomenex: Strata-X-CW SPE" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_CW_SPE_b16a0e0baf.jpg 245w," sizes="100vw" width="500" height="268"><ul><li>Recommended Use: Extraction of basic compounds, particularly strong bases</li></ul><h4>Starting Method</h4><h5>For Bases with pKa &gt; 8</h5><ul><li>Column: 1 mL Methanol</li><li>Equilibrate: 1 mL Water, pH 6-7</li><li>Load: Diluted Sample, pH 6-7</li><li>Wash 1: 1 mL Water, pH 6-7</li><li>Wash 2: 1 mL Methanol (collect this fraction to analyze Neutrals/Acids)</li><li>Elute Any Bases: 2x 500 µL 5 % Formic Acid in Methanol</li><li>Elute Weak Bases: 2x 500 µL 5 % NH4OH in Methanol</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_single_tube_435d45d0ad.jpg" alt="Phenomenex: Strata X single tube" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_single_tube_435d45d0ad.jpg 156w," sizes="100vw" width="1080" height="1080">Based on 30 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.<h4>Available Formats</h4><ul><li>96-Well-Plate</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_96_well_plate_9a66005814.jpg" alt="Phenomenex: Strata X 96-well plate" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_96_well_plate_9a66005814.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>1, 3, and 6mL Tubes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg" alt="Phenomenex: Strata X 1, 3, and 6mL Tubes" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>Giga Tubes (12-150mL Tubes)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg" alt="Phenomenex: Strata X Giga Tubes (12-150mL Tubes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg 156w," sizes="100vw" width="1080" height="1080">

Phenomenex Strata X Solid Phase Extraction (SPE)

Strata-X reversed phase SPE retains neutrals, acids, and bases via π-π, hydrogen bonding, and hydrophobic interactions. Robust cleanup under high organic wash.

Reversed Phase Solid Phase Extraction (SPE)A reversed phase functionalized polymeric sorbent that gives strong retention of neutral, acidic, or basic compounds under aggressive, high organic wash conditions. This sorbent relies on 3 mechanisms of retention: pi-pi bonding, hydrogen bonding (dipole-dipole interactions), and hydrophobic interaction.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_d8f4451e42.jpg" alt="Phenomenex: Strata-X" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_d8f4451e42.jpg 245w," sizes="100vw" width="433" height="247"><ul><li>Recommended Use: Extraction of neutrals and aromatics</li></ul><h4>Starting Method</h4><h5>For Neutral Compounds</h5><ul><li>Column: 1 mL Methanol</li><li>Equilibrate: 1 mL Water</li><li>Load: Diluted Sample</li><li>Wash: 1 mL 5-60 % Methanol</li><li>Elute: 2x 500 µL 2 % Formic Acid in Methanol/Acetonitrile</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_single_tube_435d45d0ad.jpg" alt="Phenomenex: Strata X single tube" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_single_tube_435d45d0ad.jpg 156w," sizes="100vw" width="1080" height="1080">Based on 30 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.<h4>Available Formats</h4><ul><li>96-Well-Plate</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_96_well_plate_9a66005814.jpg" alt="Phenomenex: Strata X 96-well plate" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_96_well_plate_9a66005814.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>1, 3, and 6mL Tubes</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg" alt="Phenomenex: Strata X 1, 3, and 6mL Tubes" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_1_9b04cab6c1.jpg 156w," sizes="100vw" width="1080" height="1080"><ul><li>Giga Tubes (12-150mL Tubes)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg" alt="Phenomenex: Strata X Giga Tubes (12-150mL Tubes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_X_tubes_2_a8cd1706ec.jpg 156w," sizes="100vw" width="1080" height="1080">

Phenomenex Biozen N-Glycan Clean-Up

Biozen N-Glycan Clean-up enables fast, efficient SPE purification of labeled, released N-glycans using HILIC microelution, ideal for small sample volumes and LC-MS workflows.

<h4>Easy Clean-up of Labeled, Released N-Glycans Using Solid Phase Extraction (SPE)</h4>SPE HILIC stationary phase that excels at retention and recovery labeled released N-glycans. Microelution format allows for streamlined processing and clean-up of small sample volumes.<ul><li>Small volume format allows for more concentrated samples</li><li>Minimal elution solvent</li><li>Excellent retention and recovery of labeled, released N-glycans</li><li>Faster clean-up methods to save on sample prep time</li></ul><h4>Protocol</h4><ul><li>96-Well Plate: Biozen N-Glycan Clean-up</li><li>Part No.: 8M-S009-NGA</li><li>Condition: 200 µL Water</li><li>Equilibrate: 200 µL Water/Acetonitrile (15:85)</li><li>Load: Labeled Sample (up to 400 µL of labeled sample)</li><li>Wash: 2x 600 µL Formic acid/Water/Acetonitrile (1:9:90)</li><li>Elute: 3x 30 µL 200 mM Ammonium acetate in Acetonitrile/Water (5:95) of labeled sample)</li><li>Dilute: 100 µL Dimethylformamide and then 210 µL of Acetonitrile</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Biozen_N_Glycan_962a23eee6.jpg" alt="Phenomenex: Biozen N-Glycan Clean-up" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Biozen_N_Glycan_962a23eee6.jpg 245w," sizes="100vw" width="1444" height="424">

Phenomenex Clarity OTX Clean-Up

Rapid 15-minute clean-up of biological samples using Clarity OTX SPE enables efficient isolation of RNA- and DNA-based therapeutics without LLE, optimized for LC-MS bioanalysis.

<h4>15 Minute Clean Up from Biological Samples</h4>Isolate RNA and DNA-based therapeutics / metabolites from biological fluids and tissues in less time with Clarity OTX solid phase extraction (SPE) and buffer products.<ul><li>No liquid-liquid extraction (LLE) required required</li><li>&gt;80 % typical extraction recoveries</li><li>Optimized for LC-MS bioanalysis</li></ul><h3><app-cb-header style="color:rgb(65, 66, 69);font-family:proxima-nova, sans-serif;font-size:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;"><div><div><h2 style="border-bottom:1px solid rgb(51, 51, 51);color:rgb(0, 41, 72);font-size:32px;font-style:normal;font-weight:400;line-height:1.2;"><div>General Extraction</div></h2></div></div></app-cb-header><app-cb-fourtext-eightimage style="color:rgb(65, 66, 69);font-family:proxima-nova, sans-serif;font-size:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;"><div><div><div style="flex-wrap:wrap;"><div style="flex:0 0 100%;"><h2 style="color:rgb(0, 41, 72);font-size:32px;font-weight:400;line-height:1.2;">Common Extraction Procedure (~180 minutes)</h2></div></div></div></div></app-cb-fourtext-eightimage>General Extraction</h3><h4>Common Extraction Procedure (~180 minutes)</h4><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Clarity_OTX_Clean_Up_e317411382.jpg" alt="Phenomenex: Clarity OTX Clean-Up: Common Extraction Procedure (~180 minutes)" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Clarity_OTX_Clean_Up_e317411382.jpg 245w," sizes="100vw" width="678" height="374"><h5>Suitable for Most Oligo Therapeutics &amp; Samples</h5>Oligo types / Sample Types<ul><li>DNA: Plasma</li><li>Aptamers: Serum</li><li>RNAi/siRNA: Urine</li><li>Thioates: Tears</li><li>Lipid-conjugates: Saliva</li><li>Liposome encapsulated: Tissue</li></ul><h4>Extraction Protocol</h4>Sample Pre-Treatment<ul><li>Tissue:<ul><li>Proteinase K digestion or homogenize</li><li>Mix 1-to-1 with Lysis-Loading buffer</li></ul></li><li>Biological Fluids: Mix 1-to-1 with Lysis-Loading buffer</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Clarity_OTX_Clean_Up_2_fd322c63cd.jpg" alt="Phenomenex: Clarity OTX Clean-Up: Extraction Protocol" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Clarity_OTX_Clean_Up_2_fd322c63cd.jpg 245w," sizes="100vw" width="1031" height="494">

Phenomenex Phenex LC/GC Approved Syringe Filters

Phenex syringe filters deliver fast, reliable sample filtration with excellent flow rates and broad chemical compatibility. Designed to protect columns, reduce downtime, and ensure particulate-free samples for LC, GC, and MS analysis.

Phenex syringe filters are designed for efficient and rapid filtration of almost any solution prior to analysis, and are optimized for superior flow rates and high-throughput. Proper syringe filter membrane and size selection is the key to choosing the best product to maintain the integrity of your sample components as well as to protect your system from particulate contamination. Phenex offers a wide variety of membranes ideal for any application.<h5>Try our Phenex Syringe Filters for:</h5><ul><li>High quality filtration product</li><li>Increased column lifetime</li><li>Less system downtime</li><li>Low protein absorption</li></ul><h4>Phenex Offers:</h4><ul><li>Broad chemical compatibility</li><li>Minimized extractables</li><li>Excellent flow rate</li><li>High total throughput</li><li>Certified quality</li><li>100 % integrity tested</li><li>Low hold-up volume</li><li>Low protein adsorption</li><li>Bi-directional use</li></ul><h3>Maximum Quality</h3><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_2_44145fa074.jpg" alt="Phenomenex: Phenex LC-GC Approved Syringe Filters: Maximum Quality" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_2_44145fa074.jpg 218w," sizes="100vw" width="1156" height="828"><h5>A: Identification</h5><ul><li>Syringe filter membrane type and pore size are clearly marked on each syringe filter</li></ul><h5>B: Luer Lock Inlet Tip</h5><ul><li>Secures connections to prevent “blow off”</li></ul><h5>C: Sample Distribution Rings</h5><ul><li>Creates even sample distribution for high sample flow rates</li></ul><h5>D: Medical Grade Polymer Housing</h5>Offers the most inert syringe filter and helps eliminate unwanted secondary interactions with the filter housing<h5>E: Ultrasonically Welded</h5><ul><li>Ensures robust housing - filter integrity</li></ul><h4>Guaranteed Reliability and Consistency</h4>Quality filtration products from Phenomenex offer a convenient way to clean up your samples - for improved analytical results with a simple method. Phenex syringe filters are designed for efficient and rapid filtration of almost any solution prior to analysis, and are optimized for superior flow rates and high-throughput. Phenex offers a wide variety of membranes ideal for any application.<ul><li>High quality filtration product</li><li>Increased column lifetime</li><li>Less system downtime</li></ul>The housing attaches to any standard luer lock syringe, so the sample can easily be pushed through the membrane with minimal pressure. The result is a particulate-free eluent that is ready for use with LC, GC, or other analytical techniques. One of the most popular sample preparation methods is filtration using a sample preparation solution. It has the ability to remove particulates before injection onto the column and the ability to use it in parallel with another sample preparation technique. It requires no method development.<ul><li>A: Particulates Trapped</li><li>B: Particulate-free Sample</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_631acccb54.jpg" alt="Phenomenex: Phenex LC/GC Approved Syringe Filters: Guaranteed Reliability and Consistency" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_631acccb54.jpg 42w," sizes="100vw" width="143" height="523"><h3>Recommendation Based on Your Industry</h3><h5>Environmental</h5>Water, wastewater, soil and sludge, and pollution control samples are especially challenging. No matter the sample type, Phenex offers filtration products to meet your demanding requirements.<ul><li>Recommended Filter: GF/NY</li><li>First Alternative: RC</li></ul><h5>Pharmaceutical / Biotech</h5>At every stage of the drug discovery process target compounds must be isolated, purified, and prepared prior to testing. Sample complexity in DMPK work can be even more challenging. Difficult samples such as serum, urine, and other physiological fluids are easily filtered and clarified using Phenex syringe filters.<ul><li>Recommended Filter: PES</li><li>First Alternative: RC</li></ul><h5>Clinical / Toxicology</h5>Removal of particulate matter to sub-micron levels is critical before any clinical sample is injected into an LC, GC or mass spectrometer. At every stage in toxicology, samples should be filtered, preferably with a rapid and simple sample preparation method to reduce downtime in the fast paced environment. Phenex is designed for higher flow rates and throughputs than those of competing products.<ul><li>Recommended Filter: RC</li><li>First Alternative: PES</li></ul><h5>Food and Beverage</h5>Food safety is more important than ever and lower detection limits are making analysis even more challenging. Accurate and reliable testing is critical and Phenex filters are routinely used in preparation for analysis of pesticides, herbicides, fungicides, flavors, and fragrances. For samples with large amounts of particulate and/or large fibrous matter, use a glass fiber prefilter.<ul><li>Recommended Filter: GF/NY</li><li>First Alternative: RC</li></ul><h3>How to Use Phenex Syringe Filters</h3><h4>Easy to assemble and even easier to get consistent and particulate-free samples</h4><h5>Step 1: Load</h5><ul><li>Fill a syringe barrel with the liquid sample. Allow a small amount of air (approximately 10 % of the sample volume) to enter the syringe. The air is used as a purge to minimize fluid retention when expelling the sample from the syringe (Step 3 below).</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_1_f8246ba832.jpg" alt="Phenomenex: Phenex LC/GC Approved Syringe Filters - Step 1: Load" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_1_f8246ba832.jpg 155w," sizes="100vw" width="423" height="427"><h5>Step 2: Assemble</h5><ul><li>Twist the luer lock end of the filter securely onto the syringe.</li><li>Caution: Do not use syringes without a matching luer lock, otherwise the pressure applied may cause the filter to come off unexpectedly.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_2_2833584d34.jpg" alt="Phenomenex: Phenex LC/GC Approved Syringe Filters: Step 2: Assemble" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_2_2833584d34.jpg 158w," sizes="100vw" width="349" height="344"><h5>Step 3: Filter</h5><ul><li>Apply gentle pressure to the syringe plunger.</li><li>Caution: Small syringes can generate excessive pressures.) Push the liquid sample, as well as the remaining air, through the syringe filter to maximize sample recovery.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_3_d8c5f61231.jpg" alt="Phenomenex: Phenex LC/GC Approved Syringe Filters - Step 3: Filter" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Phenex_LC_GC_Approved_Syringe_Filters_Step_3_d8c5f61231.jpg 177w," sizes="100vw" width="375" height="331">

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