
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.
• Improving sample preparation improves sensitivity and reliability • Using a high-capacity paramagnetic bead solution to clean up & isolate mAbs • Optimize clean-up of labeling reagent, salts, or surfactants pre-analysis






