
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.
This application focuses on developing a rapid SPE and LC-MS/MS method for the quantitative analysis of uracil and its two homologues from human serum.






