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- W2913880655 abstract "A sensitive and simple liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated to simultaneously determine the toxic and other active components including isovanillin, scopoletin, periplocin, periplogenin, and periplocymarin after oral administration of cortex periplocae extract to rats. Plasma samples were prepared by protein precipitation with methanol. All compounds were separated on a <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>C</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant=normal>1</mml:mn><mml:mn mathvariant=normal>8</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math> column with gradient elution using acetonitrile and formic acid aqueous solution (0.1%, v/v ) as the mobile phase at a flow rate of 0.3 mL/min. The detection of all compounds was accomplished by multiple-reaction monitoring (MRM) in the positive electrospray ionization mode. The LC-MS/MS method exhibited good linearity for five analytes. The lower limit of quantification (LLOQ) was 0.48 ng/mL for scopoletin, periplogenin, and periplocymarin; 2.4 ng/mL for isovanillin and periplocin. The extraction recoveries of all compounds were more than 90% and the RSDs were below 10%. It was found that the absorption of scopoletin and periplocin was rapid in vivo after oral administration of cortex periplocae extract. Furthermore, periplocymarin possessed abundant plasma exposure. The results demonstrated that the validated method was efficiently applied for the pharmacokinetic studies of isovanillin, scopoletin, periplocin, periplogenin, and periplocymarin after oral administration of cortex periplocae extract." @default.
- W2913880655 created "2019-02-21" @default.
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- W2913880655 date "2019-02-13" @default.
- W2913880655 modified "2023-09-25" @default.
- W2913880655 title "An LC-MS/MS Method for Simultaneous Determination of the Toxic and Active Components of Cortex Periplocae in Rat Plasma and Application to a Pharmacokinetic Study" @default.
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- W2913880655 doi "https://doi.org/10.1155/2019/1639619" @default.
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