He describes how labs often receive samples with vague instructions to simply "find out what PFAS are in it," when what's ...

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

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 ...

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 ...

Sample preparation takes the spotlight as the panel debates the trade-offs between direct injection and solid-phase extraction (SPE). David Megson recalls trace-level analysis in complex matrices from ...

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 ...

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

LC-MS/MS identified chlortetracycline in 1/29 and doxycycline in 4/29 chicken-based cat kibbles, indicating sporadic antibiotic carryover into finished commercial diets. PFAS were detected in 7/29 ...

Method harmonization takes center stage as moderator Bryan Vining opens a discussion on one of per- and polyfluoroalkyl substances (PFAS) analysis's thorniest problems: too many compounds, and too ...

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