
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.
SEC-MALS analyzes proteins, peptides, nucleic acids, polysaccharides and bionanoparticles to determine molar mass, size, conjugation, aggregation and interactions.






