Bryan Vining introduces one of the most persistent problems in per- and polyfluoroalkyl substances (PFAS) work: background contamination. Because PFAS compounds are so ubiquitous, he notes, measuring ...

Electromembrane extraction (EME) uses electric fields and liquid membranes for selective, green microextraction compatible with chromatography.

Bryan Vining notes that early PFAS concern centered on eight-carbon compounds like perfluorooctanoic acid (PFOA) and ...

Technique selection hinges on volatility/polarity; LC‑HRMS typically initiates characterization for nonvolatile/semi-volatile features, while GC‑MS can resolve ...

uMRM links untargeted MS/MS acquisition to quantitative workflows, prioritizing experimentally derived fragmentation over purely in silico predictions. Empirical controls and noise-filtering ...

Shimadzu expanded its eTOC portfolio with the TOC-1000e S to continuously quantify trace organic contamination in ultrapure ...

Ambient ionization via rapid evaporative ionization MS provided near-real-time lipid fingerprints, complementing hyphenated ...

With 960,000 empirically acquired standards, Siuzdak shows how METLIN delivers reliable, cross-instrument IDs and reveals fragmentation artifacts. Join the global community of analytical scientists ...

Sensor gas chromatography (GC) determines whether water chasers change alcohol metabolism. Hangovers can make it harder to safely drive a car or work in jobs that require careful attention, on top of ...

Eliminating solid supports reduces clogging, stationary-phase degradation, and irreversible binding, improving recovery for “sticky” or overload-prone analytes and extending robustness with complex ...