- P-ISSN 1225-0163
- E-ISSN 2288-8985
Licorice, Glycyrrhizae Radix is widely used as a herbal medicines and a dietary supplements in EastAsia. We employed high performance liquid chromatography electrospray ionization tandem mass spectrometryRadix were ionized by positive ion pneumatically assisted electrospray and detected by HPLC-MS/MS in themultiple-reaction monitoring (MRM) mode using precursor . product ion combinations at m/z 436.2 . 257.0and 823.4 . 453.4, respectively. The assay had a calibration range from 10 to 3,000 ng/mL. The limits ofdetection (LOD) of the liquiritin and glycyrrhizin were 0.4 ng/mL and 0.01 ng/mL, respectively. Theto 113 % and 0.95 to 1.8 %, respectively. According to the above results, HPLC-MS/MS method permitsassignment of tentative structures such as liquiritin and glycyrrhizin in the Glycyrrhizae Radix.