If you have been following my <a target="_blank" rel="noopener noreferrer" href="https://concentratingonchromatography.com/">Concentrating on Chromatography podcast</a>, you know that I am constantly searching for the cutting edge of separation science. After years of interviewing the brightest minds in the field, it has become clear to me that the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/companies/218">Multidimensional Chromatography Workshop (MDCW)</a> is undeniably the best up-and-coming event in our industry.While I was unfortunately traveling in Asia during the most recent session, I was able to catch every detail thanks to the incredible work of <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/companies/1">LabRulez</a>. A huge thank you to Ivo Novotný and the LabRulez team for providing <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/playlist?list=PLg-M6fM-05MrGrDggkl_UKzzcHPWPmssh">Open Access video presentations</a> of the event. Their <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/">portal </a>is an invaluable resource for anyone who needs to find technical information quickly and efficiently.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organomation_MDCW_The_Premier_Up_and_Coming_Event_in_Chromatography_2_65b378bf01.jpg" alt="Organomation: MDCW: The Premier Up-and-Coming Event in Chromatography" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organomation_MDCW_The_Premier_Up_and_Coming_Event_in_Chromatography_2_65b378bf01.jpg 245w," sizes="100vw" width="1044" height="455"><h3>The Minds Behind the Magic</h3>I have had the privilege of featuring the core organizers of MDCW on my podcast, including <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/articles?search=Katelynn+Perrault+Uptmor">Katelynn Perrault Uptmor</a>, <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/articles?search=Dwight+Stoll">Dwight Stoll</a>, and <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/articles?search=Petr+Vozka">Petr Vozka</a>. Their dedication to creating a space where forensic chemistry, environmental analysis, and metabolomics intersect is what makes this workshop so unique. The event is a perfect showcase for how multidimensional techniques—like GC×GC and 2D-LC—are essential for tackling the world's most complex samples.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Organomation_MDCW_The_Premier_Up_and_Coming_Event_in_Chromatography_265c9ec21e.jpg" alt="Organomation: MDCW: The Premier Up-and-Coming Event in Chromatography" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Organomation_MDCW_The_Premier_Up_and_Coming_Event_in_Chromatography_265c9ec21e.jpg 245w," sizes="100vw" width="792" height="230"><h3>Where Sample Prep Meets High-Resolution Analysis</h3>As we often discuss at Organomation, even the most advanced chromatographic systems depend on meticulous sample preparation. Two presentations highlighted in the LabRulez playlist perfectly illustrate the critical role of <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-solvent-evaporation">solvent evaporation</a> and <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-sample-concentration">sample concentration</a>.<h3>Chemical Fingerprints: Emma Macturk’s Quest for Hidden Data</h3><a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=1W5197sp6IY">Emma Macturk</a>, working in Dr. Katelynn Perrault Uptmor’s lab, is redefining how we look at one of the oldest forms of forensic evidence: the fingerprint. While traditional forensics relies on the physical patterns of ridges and whorls, these are often incomplete or smudged in real-world scenarios. Emma’s research shifts the focus to the chemical residue left behind, which can provide vital "class characteristics" like the biological sex and relative age of a suspect.Her optimized workflow is a masterclass in handling complex biological matrices. Using a cotton swab to extract residue from surfaces, the samples are centrifuged and then "<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/5392">blown down</a>" (a critical concentration step for any trace analysis) before <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-reconstitution">being reconstituted for GC×GC-TOFMS</a>.What makes her work truly fascinating—and highly relevant for our readers at Organomation—is the discovery of anthropogenic compounds. Emma identified UVB blockers like octocrylene and various moisturizers hidden within the natural sterols and fatty acids of the skin. The power of multidimensional chromatography allows forensic scientists to resolve these external "lifestyle" markers from endogenous skin compounds, potentially providing a much more detailed profile of a suspect than a physical print ever could.<h3>The "Green" Revolution: Grace Saunders and the Future of Ballistics</h3><a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=ClD4fjZMNtA">Grace Saunders</a> addressed a looming crisis in forensic ballistics: the shift toward "green ammunition." For decades, the gold standard for detecting gunshot residue (GSR) has been SEM-EDS, which looks for heavy metals like lead, barium, and antimony. However, modern environmental and health standards are leading manufacturers to omit these metals. This means that traditional standards are failing to identify GSR in cases involving green rounds.Grace’s research proposes a dual-pronged approach, using GC×GC to target Organic Gunshot Residue (OGSR). Her liquid extraction protocol is meticulous: samples are extracted in methanol, "<a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-evaporation-to-dryness">evaporated to dryness under nitrogen</a>," and then reconstituted. This ensures that volatile and semi-volatile nitroaromatic compounds, such as nitroglycerin and diphenylamine, are concentrated enough for detection.By optimizing parameters like the modulation period (2.5 seconds) and switching to hydrogen carrier gas, Grace was able to resolve these critical markers from the complex background "noise" of human skin. Her work isn't just about better chemistry; it’s about legal survival. As she noted, forensic methods must meet Federal Rule 702 for admissibility in court. Without the organic profiling Grace is developing, evidence from a "green" firearm discharge might never make it past a judge.<h3>The Future of Chromatography</h3>The workshop also featured brilliant presenters like <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/watch?v=YJm_JwHbArE">Ryland Giebelhaus</a>, whose work on the metabolomics of cannabis exposure during pregnancy shows the real-world impact of these technologies.The MDCW isn't just another conference; it is a community-driven powerhouse that bridges the gap between proof-of-concept and field-ready applications. Whether you are looking for advanced data reduction strategies or the latest in high-resolution mass spectrometry, this is the event to watch.<blockquote>If you missed it this year like I did, I highly recommend visiting the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?search=MDCW">LabRulez portal</a> to see the full breadth of research presented!</blockquote>

MDCW: The Premier Up-and-Coming Event in Chromatography

The choice between micro-Snyder column concentration and <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=362&amp;manufacturerItems=540">nitrogen blowdown evaporation</a> represents one of the most critical decisions in EPA analytical methodology. Both techniques serve as validated concentration methods across numerous EPA test procedures, yet each offers distinct advantages that make them suitable for different analytical scenarios. Understanding these differences is essential for laboratories seeking to optimize their analytical workflows and ensure regulatory compliance.<h3>Understanding the Fundamentals</h3>Both concentration techniques serve the same primary purpose: reducing extract volumes to levels suitable for instrumental analysis while maintaining analyte integrity. However, their operational principles differ significantly in terms of temperature requirements, operator involvement, and equipment specifications.The micro-Snyder column technique utilizes controlled heat application through a hot water bath maintained at 60-65°C, with the distillation process regulated by the column's three-ball or two-ball design [1, 2]. The technique provides visual indicators of proper operation through actively chattering balls, which signal optimal distillation rates without chamber flooding [2]. In contrast, nitrogen blowdown operates at significantly lower temperatures of 30-35°C, using a gentle stream of filtered nitrogen to facilitate solvent evaporation [3, 4].<h3>Widespread EPA Method Applications</h3><h4>Micro-Snyder Column Integration</h4>The micro-Snyder column technique demonstrates remarkable ubiquity across EPA analytical methods, appearing as a standard procedure in numerous applications:<ul><li>Water Analysis: EPA Method 625 for base/neutral and acid extraction specifies the use of both three-ball macro-Snyder columns for initial concentration (15-20 minutes) and two-ball micro-Snyder columns for final concentration (5-10 minutes) [2]. The method requires pre-wetting columns with 0.5 mL of methylene chloride and maintaining proper distillation rates where "the balls of the column will actively chatter but the chambers will not flood with condensed solvent" [2].</li><li>Organochlorine Analysis: EPA Method 610 for polynuclear aromatic hydrocarbons incorporates micro-Snyder columns for both standard concentration and specialized solvent exchange procedures, including acetonitrile concentration at elevated temperatures of 95-100°C [5].</li><li>Nitrosamine Detection: EPA Method 607 utilizes micro-Snyder columns as part of its comprehensive extraction and concentration protocol, with specific volume adjustments to 2.0 mL following concentration [6].</li><li>Advanced Extraction Methods: EPA Method 3570 for microscale solvent extraction employs sequential micro-Snyder columns, using both three-ball and two-ball columns in series for optimal concentration control [1].</li></ul><h4>Nitrogen Blowdown Applications</h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/5392">Nitrogen blowdown evaporation </a>has gained significant acceptance across EPA methodologies, particularly for applications requiring gentle thermal treatment:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/what-is-solid-phase-extraction-spe">Solid Phase Extraction</a>: EPA Method 3535A explicitly provides nitrogen evaporation as an alternative to micro-Snyder column concentration, recognizing both techniques as equally valid approaches. The method specifies operation in a warm water bath at 30°C with filtered nitrogen that has passed through activated carbon [3].</li><li>Environmental Monitoring: EPA Method 1668 for chlorinated biphenyl congeners incorporates nitrogen blowdown for micro-concentration procedures, utilizing water bath temperatures between 30-60°C . The method emphasizes the importance of controlled evaporation to prevent analyte degradation.</li><li>Pesticide Analysis: EPA Method 1699 for pesticides in environmental matrices specifies nitrogen blowdown procedures with water bath temperatures of 60°C, demonstrating the technique's versatility across different temperature ranges [7].</li><li>PFAS Analysis: Modern EPA methods for per- and polyfluoroalkyl substances (PFAS), including <a target="_blank" rel="noopener noreferrer" href="https://blog.organomation.com/blog/concentrating-pfas-samples-ahead-of-lcms">Methods 533 and 537.1</a>, rely heavily on nitrogen blowdown due to the thermal sensitivity of these emerging contaminants [8].</li></ul><h3>Comparative Performance Analysis</h3><h4>Micro-Snyder Column Advantages</h4><ul><li>Standardized Reproducibility: The micro-Snyder column technique offers inherent standardization through its visual feedback mechanism. The actively chattering balls provide immediate indication of proper operation, reducing operator variability between laboratories [2]. This standardization has contributed to its widespread adoption across EPA methods spanning decades of regulatory use.</li><li>Built-in Safety Features: The column design incorporates multiple safety elements, including automatic regulation of distillation rates and the 10-minute cooling and draining period that prevents rapid temperature changes [2]. These features minimize the risk of analyte loss due to operator error or equipment malfunction.</li><li>Proven Regulatory Acceptance: The technique's inclusion in foundational EPA methods like 625, 610, and 607 demonstrates its long-standing regulatory acceptance and proven reliability across diverse analytical applications [2, 5, 6].</li><li>Efficient Heat Transfer: The controlled temperature environment of 60-65°C provides efficient solvent evaporation while remaining below the degradation threshold for most organic compounds [1, 2].</li></ul><h4>Nitrogen Blowdown Advantages</h4><ul><li>Temperature-Sensitive Analyte Preservation: Operating at 30-35°C, nitrogen blowdown provides gentler thermal treatment that preserves heat-sensitive compounds [3, 4]. This advantage is particularly crucial for emerging contaminants like PFAS, where thermal degradation can significantly impact analytical results [8].</li><li>Precise Volume Control: The technique allows operators to achieve exact final volumes through visual monitoring, stopping evaporation at precisely the desired endpoint . This precision is valuable when specific concentration factors are required for regulatory compliance.</li><li>Reduced Equipment Investment: Nitrogen blowdown requires minimal specialized glassware compared to <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1904">Kuderna-Danish</a> apparatus with Snyder columns, making it accessible for laboratories with limited capital budgets [9].</li><li>Enhanced Operator Control: The real-time monitoring capability allows operators to adjust evaporation rates and respond to unexpected conditions during the concentration process [9].</li></ul><h4>Comparative Limitations</h4><ul><li>Micro-Snyder Column Challenges: The technique requires significant capital investment in specialized glassware and heating equipment [2]. Additionally, the automated nature of the process provides limited operator control once concentration begins, potentially problematic for samples requiring specific handling.</li><li>Nitrogen Blowdown Limitations: The technique demands constant operator attention to prevent over-concentration, with organophosphorus pesticides being particularly susceptible to losses from complete dryness. Contamination risks from plastic tubing and the need for precise nitrogen flow control add complexity to routine operations [3].</li></ul><h3>Method Selection Guidelines</h3><h4>Sample Throughput Considerations</h4>High-volume environmental laboratories often favor micro-Snyder columns for their automated operation and reduced hands-on time requirements [2]. The technique allows multiple samples to be processed simultaneously with minimal operator intervention, improving laboratory productivity.Conversely, laboratories processing smaller sample batches or requiring individual sample optimization may prefer <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1908">nitrogen blowdown's flexibility</a> and precise control capabilities [9].<h4>Analyte-Specific Requirements</h4>Temperature-sensitive compounds, including many pharmaceutical residues and emerging contaminants, benefit from nitrogen blowdown's lower operating temperatures [8, 9]. The 30-35°C operating range significantly reduces thermal stress compared to the 60-65°C requirement for micro-Snyder columns [3].For thermally stable environmental pollutants like polynuclear aromatic hydrocarbons and organochlorine compounds, both techniques provide equivalent performance with method selection based on operational preferences [5].<h4>Regulatory Compliance Factors</h4>Specific EPA methods may designate one technique over another, eliminating choice for particular analytical procedures. However, methods like EPA 3535A that offer both options allow laboratories to select based on their specific capabilities and quality control requirements [3].<h4>Contemporary Applications and Future Trends</h4>The analytical landscape continues evolving with emerging contaminants and advanced instrumentation. Nitrogen blowdown has gained particular prominence in PFAS analysis due to these compounds' thermal sensitivity and the need for trace-level detection [8]. This trend reflects the technique's adaptability to modern analytical challenges.Simultaneously, micro-Snyder columns remain essential for established environmental monitoring programs where long-term data consistency requires standardized procedures [2]. The technique's proven track record supports its continued use in regulatory compliance monitoring.<h3>Conclusion</h3>Both micro-Snyder column concentration and nitrogen blowdown serve critical roles in EPA analytical methodology, with optimal selection depending on specific analytical requirements, laboratory capabilities, and regulatory constraints. The micro-Snyder column technique excels in standardized, high-throughput applications where proven reliability and regulatory acceptance are paramount. Nitrogen blowdown provides superior performance for temperature-sensitive analytes and applications requiring precise volume control.Modern laboratories benefit from understanding both techniques' capabilities, allowing method selection based on analyte properties, sample characteristics, and operational requirements. As analytical chemistry continues advancing with new contaminants and detection challenges, both concentration methods will remain valuable tools in the environmental analyst's toolkit.The choice between these techniques ultimately reflects the broader analytical strategy, balancing regulatory compliance, analytical performance, and operational efficiency to achieve reliable environmental monitoring results.

Micro-Snyder Column vs Nitrogen Blowdown: Choosing the Right Concentration Method for EPA Applications

Ask any analytical chemist which hyphenated technique has become indispensable over the past decade, and the answer will almost certainly be the same: tandem chromatography–mass spectrometry. Whether it is <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/preparing-samples-for-lc-ms/ms-analysis">LC–MS/MS</a> quantifying a novel biologic’s metabolic fate, or <a target="_blank" rel="noopener noreferrer" href="https://www.organomation.com/preparing-samples-for-gc-ms/ms-analysis">GC–MS/MS</a> chasing per- and polyfluoroalkyl substances (PFAS) down to sub-part-per-trillion levels in municipal water, the combination of chromatographic separation with the specificity of tandem mass detection has become the analytical workhorse of choice across virtually every regulated sector.Below we examine the key forces propelling this expansion, from biopharma pipeline dynamics and PFAS regulatory mandates to AI-driven automation and reshoring of pharmaceutical manufacturing—and explore what each trend means for laboratories managing sample preparation and analytical workflows.<h3>Biopharma: The Engine Room of LC–MS/MS Demand</h3><h4>GLP-1 Agonists and the Metabolomics Gold Rush</h4>The explosive commercial and scientific interest in GLP-1 receptor agonists—<a target="_blank" rel="noopener noreferrer" href="https://www.sepscience.com/advancing-glp-1-peptide-analysis-chromatography-challenges-and-innovations-12163">semaglutide and related peptide therapeutics </a>for diabetes and obesity—has dramatically expanded the analytical demands placed on tandem MS platforms. Discovery programs require precise quantification of peptide drug candidates and endogenous biomarkers across complex biological matrices. These workflows rely on high-sensitivity LC–MS/MS for pharmacokinetic profiling, receptor occupancy studies, and metabolomics characterization. Metabolomics is, in fact, projected to be the fastest-growing application segment in mass spectrometry, driven in part by its growing role in cancer screening, biomarker discovery, and metabolic disease research.I have been spending more time learning about GLP-1s because this is the hot topic that people want to discuss on the Concentrating on <a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL?si=n9GLz9zjSCOrVfXPxFPhng&amp;nd=1&amp;dlsi=52868e027aad4d22">Chromatography podcast</a>. With that said, I was astounded looking at CNBC.com during breakfast this morning to see that <a target="_blank" rel="noopener noreferrer" href="https://www.cnbc.com/2026/03/21/glp-1-diets-restaurants-protein-fiber-weight-loss-drugs.html">one in eight Americans are currently taking one of these drugs such as Ozempic</a>.<h4>Antibody–Drug Conjugates and Gene Therapy: Complexity at Every Step</h4>The ascent of antibody–drug conjugates (ADCs) and gene therapies has introduced a new level of analytical complexity. ADCs blend the target specificity of monoclonal antibodies with the cytotoxic potency of small-molecule payloads—and characterizing the linker chemistry, drug-to-antibody ratio (DAR), and conjugate stability demands high-resolution LC–MS/MS at every stage from discovery through QC release testing. Gene therapy vectors require equally rigorous characterization of impurities, aggregates, and empty/full capsid ratios.This translates into a direct need for low-evaporation, high-recovery concentration methods that preserve labile protein structures and maintain sample integrity prior to LC–MS/MS injection. <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/5392">Nitrogen evaporation workflows</a> that minimize oxidative stress and maintain sample temperature are increasingly critical in these pipelines.<h4>Precision Medicine and Multi-Omics Integration</h4>The shift toward precision medicine has accelerated adoption of high-throughput, multi-analyte MS platforms. Proteomics, metabolomics, and lipidomics workflows are converging on a single analytical platform—tandem MS—and generating datasets of a scale and complexity that were unimaginable ten years ago.Make no mistake: the triple quadrupole serves an irreplaceable role in quantitative targeted analysis. At the same time, <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=134&amp;manufacturerItems=3">Orbitrap </a>and Q–TOF hybrid platforms are growing rapidly as researchers demand full-scan accurate mass for untargeted discovery.<h3>Environmental Mandates: PFAS Testing Drives Adoption</h3>Environmental testing is something that every person, chemist or not, can understand the importance of. Mounting mandates from the U.S. Environmental Protection Agency and European regulators regarding PFAS—the “forever chemicals” whose extraordinary environmental persistence is matched only by the analytical challenge of detecting them at trace levels—have created immediate, compliance-driven investment in LC–MS/MS infrastructure.<h4>The Regulatory Framework Chemists Need to Know</h4>The EPA has codified a suite of LC–MS/MS-based methods as the analytical standard for PFAS in water and solid matrices:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://blog.organomation.com/blog/epa-533-drying-down-pfas-samples-after-spe">EPA Method 533</a>: Weak anion exchange SPE combined with LC–MS/MS; covers 25 PFAS including short-chain compounds in drinking water.</li><li><a target="_blank" rel="noopener noreferrer" href="https://blog.organomation.com/blog/sample-concentration-epa-method-537-pfas-determination">EPA Method 537.1</a>: Reversed-phase SPE followed by LC–MS/MS; covers 18 PFAS including the GenX compound, with method detection limits in the low ng/L range.</li><li><a target="_blank" rel="noopener noreferrer" href="https://www.agilent.com/en/solutions/environmental/water-testing/pfas-in-water/us-epa-method-8327?srsltid=AfmBOooCY1pcavj7B1PH-75d3HO4BGDglNlhmyTyrpDY3zvUksMO1dlg">EPA Method 8327</a>: LC–MS/MS for selected PFAS in prepared extracts of aqueous and solid matrices.</li><li><a target="_blank" rel="noopener noreferrer" href="https://blog.organomation.com/blog/preparing-diverse-sample-matrices-for-epa-method-1633">EPA Draft Method 1633</a>: The emerging benchmark for PFAS in non-aqueous matrices—aqueous, solid, biosolids, and tissue—quantifying up to 40 PFAS.</li></ul>All of these methods designate LC–MS/MS, specifically LC coupled to triple quadrupole or tandem-in-time platforms operating in negative electrospray ionization mode with multiple reaction monitoring (MRM), as the required or recommended analytical technique. PFAS analysis is, at its core, an LC–MS/MS problem.<h4>The Sample Preparation Bottleneck</h4>Chemists who have worked with PFAS methods understand the particular demands they place on sample preparation. The ubiquity of<a target="_blank" rel="noopener noreferrer" href="https://blog.organomation.com/blog/tackling-pfas-contamination-practical-insights-from-epa-537.1-method-development"> PFAS in laboratory materials</a>—PTFE tubing, some SPE sorbents, standard bench supplies—means that blank contamination control is as analytically demanding as the detection itself. EPA 537.1 requires that sample volumes of approximately 250 mL be extracted and reconstituted in as little as 1 mL, creating a 250:1 concentration factor that can expose even trace contamination in the sample processing chain. The installation of a delay column between the LC pump and autosampler to prevent instrument background interference is now standard practice.This is precisely where robust, <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/5385">inert nitrogen evaporation </a>systems earn their keep. PFAS workflows that use nitrogen-assisted evaporation to concentrate extracts prior to reconstitution benefit from materials that avoid PTFE and other fluoropolymers that can leach PFAS background—a consideration Organomation addresses in its concentration system designs.The analytical community is also moving beyond targeted PFAS analysis. High-resolution accurate mass (HRAM) spectrometry via Orbitrap technology, paired with non-targeted screening workflows, is gaining traction for the identification of the more than 5,000 currently catalogued PFAS compounds and the novel structures that continue to emerge. LC–MS/MS remains the quantitative gold standard; HRAM provides the discovery layer.<h3>Technological Trends Reshaping the LC–MS/MS Workflow</h3><h4>Artificial Intelligence and Automated Data Interpretation</h4>The datasets generated by modern tandem MS platforms—particularly in omics applications—are too large and too complex for conventional manual review. AI-driven spectral deconvolution, automated peak integration, and AI-assisted hypothesis generation are now embedded in the software suites accompanying leading instruments. <a target="_blank" rel="noopener noreferrer" href="https://www.agilent.com/about/newsroom/presrel/2022/17feb-gp22004.html?srsltid=AfmBOop3warRIaEojXM2YyMML6RXfMIDzE-Wm0h-SiKkkocBeeET2m7u">Agilent’s acquisition of Virtual Control’s ACIES </a>software specifically to automate LC–MS and GC–MS data analysis is emblematic of this direction.For laboratory managers, AI integration means smaller specialized teams can operate high-throughput multi-analyte workflows—but it also means that the front-end sample preparation must be even more reproducible, since algorithmic interpretation amplifies inconsistencies introduced upstream.<h4>Online SPE Coupling and “Chromatography Without Walls”</h4>A significant trend is the integration of solid-phase extraction directly into the HPLC flow path—so-called online SPE–HPLC coupling. Systems that combine extraction and chromatographic separation in a single analytical instrument reduce manual transfer steps, minimize the risk of sample loss or contamination, and dramatically increase throughput. For analytes at very low concentrations, online SPE provides the on-column concentration capability that traditional offline preparation achieves with manual evaporation steps.That said, offline sample preparation—including <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/5392">nitrogen-assisted evaporation</a> under controlled conditions, <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2407">liquid–liquid extraction</a>, and protein precipitation—retains significant advantages in flexibility, matrix handling, and the ability to process sample volumes that exceed online system capacity. The two approaches are increasingly complementary rather than competitive in well-designed analytical laboratories.<h4>High-Purity Solvents and Reference Materials</h4>As detection limits push further into the femtogram range and regulatory methods demand demonstrable blank performance, the quality of analytical consumables—mobile phase solvents, derivatization reagents, reference standards—has moved from background consideration to front-of-mind. Method validation in regulated environments now routinely requires vendor certification of solvent purity at a level that directly interfaces with instrument performance.<h3>The Ever-Present Need for Sample Evaporation</h3>As LC–MS/MS methods push detection limits lower, the analytical burden shifts increasingly upstream. The quality of the concentration, cleanup, and reconstitution steps preceding injection determines whether the instrument’s theoretical sensitivity is achievable in practice.Several specific developments are particularly relevant:<ul><li>ADC and gene therapy characterization workflows require gentle, low-temperature evaporation that preserves protein structure and prevents aggregation prior to LC–MS/MS. Nitrogen evaporation under controlled conditions is the preferred approach.</li><li>PFAS trace analysis demands evaporation systems constructed from PFAS-inert materials, with rigorous attention to avoiding fluoropolymer surfaces throughout the sample path.</li><li>High-throughput pharmaceutical QC driven by reshoring demands parallel processing capability—multi-position evaporators that maintain consistent flow and temperature across all positions simultaneously.</li><li>Multi-omics and metabolomics workflows generate large sample batches that benefit from automated, walk-away evaporation with programmable endpoints to ensure reproducible final volumes across a cohort.</li></ul>Tandem chromatography–mass spectrometry is not merely growing; it is becoming structurally embedded in the analytical workflows of every major regulated industry. The convergence of biopharma complexity, PFAS regulatory mandates, AI-enabled data analysis, and pharmaceutical reshoring is creating a multi-year demand cycle that will require laboratories to invest not only in instruments, but in the entire sample preparation ecosystem that makes those instruments perform.For analytical chemists, the practical takeaway is this: as mass spectrometry sensitivity continues to advance, the sample preparation step becomes the binding constraint on method performance. Whether you are developing a new PFAS method to meet EPA 1633, characterizing an ADC’s drug-to-antibody ratio, or running a 500-sample metabolomics cohort overnight, the reliability and cleanliness of your concentration and cleanup workflow determines the quality of every data point that follows.&nbsp;

The Continued Rise of Tandem Chromatography–Mass Spectrometry

Article

Product

Events

Webinars

Application

Academy

Video

Poster

Scientists

Plastics

Environment

Food

Water

Health

Presentation

Scientific article

Interview

Toxicology

Popularization

Science and research

Software

Covid-19

Career

Laboratories

Various

Zaměření

Type of News

Focus

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.

Organomation

European Symposium on Analytical Spectrometry (ESAS) 2026

2026 AOAC INTERNATIONAL Annual Meeting & Exposition

Shimadzu at 2026 AOAC Annual Meeting & Exposition

ICP-MS for Hybrid Photoelectrode Characterization

Modern Methods for Faster Microbial Analysis

Addressing LC Method Optimization - Scaling For Efficiency, Throughput And Reproducibility