摘要
[Objectives]To identify stained Schisandrae Chinensis Fructus in Lifei Tablets with carmine and acid red 73 as target substances.[Methods]High performance liquid chromatography(HPLC)and liquid chromatography tandem-mass spectrometry(LC-MS/MS)was used to analyze the 70%methanol extract of the drug.The HPLC was equipped with an Inertstain-C_(18)(250 mm×4.6 mm,5μm)chromatographic column.The mobile phase was acetonitrile-5 mmol/L ammonium acetate solution,gradient elution:volume flow rate of 1.0 mL/min,column temperature of 30℃,detection wavelength of 509 nm.LC-MS/MS was equipped with a Waters-C_(18)(2.1 mm×150 mm,1.7μm)chromatographic column,the mobile phase was methanol-0.1%formic acid solution(containing 5 mmol/L ammonium acetate),gradient elution;the volume flow rate was 0.3 mL/min;ESI ion source,positive ion mode,full scan of primary and secondary mass spectrometry.[Results]Carmine and acid red 73 showed good linear relationship in HPLC and LC-MS/MS,with r greater than 0.995.The sample recovery and RSD values of HPLC and LC-MS/MS met the requirements.The RSD of the results determined by HPLC and LC-MS/MS was not greater than 5.0%.Both methods had good compatibility and could be used for the examination of carmine and acid red 73 in Lifei Tablets.[Conclusions]The method is reliable and reproducible and can be used to identify stained Schisandrae Chinensis Fructus in Lifei Tablets.
基金
Supported by Chongqing Pharmaceutical Research Project of Chongqing Drug Administration and Chongqing Science and Technology Bureau(Yu Yao Jian[2021]30)。
