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- W2379848049 abstract "Objective: To establish a UHPLC-MS /MS method for simultaneous determination of caffeic acid,ferulic acid,rutin,scutellarin,baicalin,astragaloside Ⅳ,wogonin in Gandi capsules. Methods: The chromatographic separation was on ZORBAX SB-C18column( 2. 1 mm × 50 mm,1. 8 μm) with a mobile phase consisting of acetonitrile( A)-water( B) at a flow rate of 0. 4 mL·min-1( 0-4 min,5%A→20%A;4-4. 5 min,20%A→40%A;4. 5-8 min, 40% A→43% A; 8-8. 5 min,43% A→90% A; 8. 5-9 min,90% A→5% A),and the column temperature was 35 ℃,using electrospray ionization source( ESI),and multiple reaction monitoring( MRM),combined with positive and negative scanning switch. Caffeic acid,ferulic acid,and scutellarin were detected using negative ion mode,while rutin,baicalin,astragaloside Ⅳ,and wogonin were detected using positive ion mode. Results: The quantification limits of caffeic acid,ferulic acid,rutin,scutellarin,baicalin,astragaloside Ⅳ,and wogonin were 0. 22,0. 35,0. 39,0. 48,0. 31,1. 31,0. 11 ng · mL-1,and the detection limits were 0.066,0.11,0.12,0.14,0.092,0.39,0.033 ng·mL-1,respectively. Within the linear range,the correlation coefficient was 0. 99. Intra-day and inter-day precisions( RSDs) were less than 5%. The average recoveries of the seven components were in the range of 80%-120%. Conclusion: By method validation,this method is proved to be simple,rapid,sensitive and accurate. It can be used to determine caffeic acid,ferulic acid,rutin,scutellarin,baicalin,astragaloside Ⅳ,and wogonin in Gandi capsules. The determination results of 18 batches of Gandi capsules showed that the content of each batch had significant difference,and the content had a slight decreasing trend over time, especially for rutin and baicalin. These results were helpful for the quality control of drug." @default.
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- W2379848049 date "2014-01-01" @default.
- W2379848049 modified "2023-10-02" @default.
- W2379848049 title "Simultaneous determination of seven compounds in Gandi capsules by UHPLC-MS / MS method" @default.
- W2379848049 hasPublicationYear "2014" @default.
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