
Comparative metabolite profiling and fingerprinting of medicinal licorice roots using a multiplex approach of GC-MS, LC-MS and 1D NMR techniques
Keywords: ESI; electrospray ionization; GC; gas chromatography; LC; liquid chromatography; MS; mass spectrometry; MSn; tandem mass spectrometry; NMR; nuclear magnetic resonance; PDA; photodiode array detection; PCA; principal component analysis; HCA; hierarchical c