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- W2912115443 abstract "Abstract A sensitive and rapid liquid chromatography with tandem mass spectrometry method has been developed for simultaneous determination of berberine (I), jateorhizine (II), palmatine (III), tetrahydropalmatine (IV), phellodendrine (V), protopine (VI) and columbamine (VII) in rat plasma after oral administration of Phellodendri chinensis cortex extraction. The plasmas were extracted by liquid‐liquid extraction. The tandem mass spectrometric detection was performed in the multiple reaction monitoring mode in the positive ionization. The intra‐ and interday precisions and accuracies were in range from −12.18 to 13.21%. Mean absolute recoveries of all analytes and internal standard were between 78.6 and 98.9%. The seven alkaloids were proven to be stable during sample storage and analysis procedures. The established method was validated and successfully applied to pharmacokinetics study in rat plasma after oral administration of Phellodendri chinensis cortex extract. The t 1/2 of palmatine, columbamine, pellodendrine, berberine, tetrahydropalmaine, jatrorrhizine, and protopine were 5.16, 5.96, 7.18, 19.84, 6.28, 7.08, 6.90 h, respectively. The seven compounds could be rapidly absorbed into blood (time for maximal concentration, 1.80–1.93 h). This study could establish a foundation for further research of Phellodendri chinensis cortex and might provide more useful information to guide the clinical usage." @default.
- W2912115443 created "2019-02-21" @default.
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- W2912115443 date "2019-03-08" @default.
- W2912115443 modified "2023-10-18" @default.
- W2912115443 title "A LC‐MS/MS method for simultaneous determination of seven alkaloids in rat plasma after oral administration of <i>Phellodendri chinensis cortex</i> extract and its application to a pharmacokinetic study" @default.
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- W2912115443 doi "https://doi.org/10.1002/jssc.201801018" @default.
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