Markes International Wins Queen’s Award for Enterprise

We spoke with Josh Hoerner, general manager of Purisys, which specializes in a small volume custom synthesis and specialized controlled substance manufacturing, to gain his perspective on FDA’s recommendations for acceptable intake limits for N-nitrosamine impurities.

The critical role of separation science in per- and polyfluoroalkyl substances (PFAS) research highlights just how essential chromatography is in solving complex challenges that benefit society.

Root exudates—substances secreted by living plant roots—are challenging to sample, as they are typically extracted using artificial devices and can vary widely in both quantity and composition across plant species.

Researchers used liquid chromatography–mass spectrometry (LC–MS) in their proteomic analysis to compare the serum proteome of migraine patients with healthy controls and to identify differentially expressed proteins as potential migraine biomarkers.