Abstract��
Objective To develop a method for the determination of arbutin,gallic acid,bergenin,protocatechuic acid,chlorogenic acid,catechin,epicatechin,epicatechin gallate,and ferulic acid in Bergenia purpurascens by HPLC-MS/MS. METHODS The samples were separated on a Diamonsil C18 column (4.6 mm×150 mm,5 μm) by gradient elution using methanol and 0.2‰ ��V/V�� formic acid aqueous solution as the mobile phase at a flow rate of 0.8 mL·min-1. The column temperature was room temperature. Multiple-reaction monitoring (MRM) scanning was employed for quantification with switching electrospray ion source polarity in negative mode. RESULTS Complete separation was achieved within 10 min for the nine compounds (arbutin,gallic acid,bergenin,protocatechuic acid,chlorogenic acid,catechin,epicatechin,epicatechin gallate,ferulic acid). The nine regression equations showed linear relationships between peak areas and contents of each compound. The average recoveries (n=9) of the compounds listed above were 100.2%,100.0%,99.8%,99.9%,97.9%,101.2%,99.8%,101.7%,102.4% and RSD were 0.80%,3.06%,2.72%,3.28%,3.58%,1.44%,0.95%,0.96%,0.48%,respectively. CONCLUSION The method is simple,accurate and has good reproducibility,thus can be used for the determination of the nine compounds in Bergenia purpurascens.
REN Yan-Ping,
CAO Liang,
CHANG Lu etc
.Simultaneous Determination of Nine Compounds in Bergenia purpurascens by HPLC-MS[J] Chinese Pharmaceutical Journal, 2013,V48(6): 477-481
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