
High-performance liquid chromatography-tandem mass spectroscopy (HPLC–MS/MS) chromatography reveals pyrrolizidine alkaloids (PA)/pyrrolizidine alkaloid N-oxides (PANO) toxin risks in 63 tea samples.
Zebron gas management filters and click-on GC traps remove contaminants from mobile-phase gases, reduce column bleed, increase column life, protect GC detectors.






