scholarly journals Simultaneous determination of l -tetrahydropalmatine and its active metabolites in rat plasma by a sensitive ultra-high-performance liquid chromatography with tandem mass spectrometry method and its application in a pharmacokinetic study

2017 ◽  
Vol 31 (6) ◽  
pp. e3903 ◽  
Author(s):  
Weihui Wang ◽  
Jing Liu ◽  
Xiaoning Zhao ◽  
Yan Peng ◽  
Nannan Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
High Performance ◽  
Rat Plasma ◽  
Tandem Mass ◽  
Active Metabolites ◽  
Spectrometry Method

scholarly journals An Ultra-High Performance Liquid Chromatography with Tandem Mass Spectrometry Method for Determination of 10 Alkaloids in Beagle Dog Plasma after the Oral Administration of the Corydalis yanhusuo W.T. Wang Extract and Yuanhuzhitong Tablets

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 1925 ◽  
Author(s):  
Binbin Cui ◽  
Jing Yang ◽  
Zhibin Wang ◽  
Chengcui Wu ◽  
Hongrui Dong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Oral Administration ◽  
High Performance ◽  
Tandem Mass ◽  
Spectrometry Method ◽  
Dog Plasma

This study has developed a sensitive and simple ultra-high performance liquid chromatography-electrospray ionization-tandem mass spectrometry method for the simultaneous determination of corydaline, dehydrocorydaline, tetrahydropalmatine, protopine, palmatine, tetrahydroberberine, columbamine, berberine, coptisine and berberrubine in beagle dog plasma after the oral administration of the Corydalis yanhusuo W.T. Wang and Yuanhuzhitong tablets. Chromatographic separation was achieved on an Agilent Eclipse Plus C18 RRHD column (1.8 µm, 50 × 2.1 mm) using a gradient elution program with a mobile phase consisting of acetonitrile and water containing 0.1% formic acid at a flow rate of 0.3 mL/min. A tandem mass spectrometric detection was conducted by multiple reaction monitoring (MRM) mode via an electrospray ionization source in the positive mode. The calibration curves of all analytes showed good linear (r2 > 0.9800). The intra-day and inter-day precisions were less than 15% and the accuracies were within ±15%. The extraction recoveries conformed to the acceptable range. And there was no interference of endogenous substances in the sensitive assay method. All analytes were proven to be stable during sample storage and analysis procedures. The pharmacokinetic study indicated that the Yuanhuzhitong tablets could get a better absorption than Corydalis yanhusuo W.T. Wang.

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