Readers' Question – Carryover, Mobile-Phase Temperature, and Column Care

High-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS) was used in a reverse triiodothyronine (rT3) test to separate canine hypothyroidism from illness.

Quantera Analytical’s Terry Bates discusses parallel headspace extraction for gas chromatography-mass spectrometry (GC–MS) and direct analysis in real time–mass spectrometry (DART–MS) analysis.

Amandaa Brewer warns a shortage of large-molecule chromatography experts, as practitioners retire, could leave the next generation without the fundamentals.

Christopher Chouinard of Clemson University discusses with LCGC International how derivatization reshapes steroid mass for sharper liquid chromatography-ion mobility-mass spectrometry (LC-IM-MS) separations.

Gas chromatography (GC) tests show spoilage yeasts alter flavor and raise alcohol in NoLo beer.

Liquid chromatography–tandem mass spectrometry (LC–MS/MS) finds low glyphosate residues of the weedkiller glyphosate in coffee beans.

This week, Chromatography Online explored how the technique is advancing wastewater drug monitoring, siRNA method development, and food safety testing, with previews of RAFA 2026 and a return to HPLC fundamentals with Michael Dong.

Recent EU legislation on PFAS shifts from monitoring individual compounds toward managing them as a chemical class.