Configurational Isomer Differentiation Between 20(S)- and 20(R)-Ginsenosides in Red Ginseng via Applying [CuII(l-Phe)2-H]+ to Post-Column Infusion LC-MS/MS
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Introduction: 20(R)-ginsenosides are formed by Walden inversion during ginseng processing and usually exhibit almost identical MS/MS behaviors, yet display distinct pharmacological activities compared with 20(S)-configurational i... ...
