LC-MS/MS LVI-GC-MS(SIM) Partial Least Squares regression Research & information: general UPLC-MS/MS adulteration alnustone amantadine anwuligan baricitinib biomimetic chromatography cell-based bioassay contact-lens detergent derivatization dietary supplement doxorubicin drug-drug interaction fixed-dose combination folic acid gardneramine growth hormone hernandezine high throughput bar adsorptive microextraction in vitro permeability inflammatory bowel disease irbersartan ketamine lactone-rhodamine B long-acting Fc-fusion recombinant human growth hormone low-field NMR