比沙可啶原料药和肠溶片中有关物质测定方法研究
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篇名: 比沙可啶原料药和肠溶片中有关物质测定方法研究
TITLE:
摘要: 目的:建立测定比沙可啶原料药和肠溶片中有关物质的方法。方法:采用高效液相色谱法。色谱柱为Hibar C18,流动相为乙腈-20 mmol/L乙酸铵溶液(冰乙酸调pH至5.0)(55 ∶ 45,V/V),检测波长为265 nm,流速为1.0 ml/min,柱温为30 ℃,进样量为20 μl。结果:在该色谱条件下各杂质及其与主成分之间均分离良好;比沙可啶检测质量浓度线性范围为0.25~5.0 mg/ml(r=0.999 9);比沙可啶以及杂质A、B、C、D、E的检测限和定量限分别为19~25 ng和61~68 ng;精密度、稳定性、重复性试验的RSD<2%;比沙可啶回收率为99.50%~101.00%,RSD=0.5%(n=9)。结论:该方法专属性强、灵敏度高、重复性好,可用于比沙可啶原料药和肠溶片剂中有关物质的测定。
ABSTRACT: OBJECTIVE: To establish a method for the determination of related substances in bisacodyl raw material and enteric-coated tablet. METHODS:HPLC was performed on the column of Hibar C18 with mobile phase of acetonitrile -20 mmol/L ammonium acetate (acetic acid adjust pH to 5.0)(55 ∶ 45,V/V), detection wavelength was 265 nm, flow rate was 1.0 ml/min, column temperature was 30℃, and the injection volume was 20 μl. RESULTS: The linear range of bisacodyl was 0.25-5.0 mg/ml(r=0.999 9); the limits of detection and quantification were 19-25 ng and 61-68 ng for bisacodyl and impurity A, B, C, D and E; RSDs of precision, stability and reproducibility tests were lower than 2%; recovery was 99.50%-101.00% (RSD=0.5%,n=9). CONCLUSIONS: The method is specific, sensitive and reproducible, and can be used for the determination of related substance in bisacodyl raw material and enteric-coated tablet.
期刊: 2016年第27卷第21期
作者: 张西如,孙婷,郭永辉,刘红莉,赫晓军,苗会娟,盖成
AUTHORS: ZHANG Xiru,SUN Ting,GUO Yonghui,LIU Hongli,HE Xiaojun,MIAO Huijuan,GE Cheng
关键字: 高效液相色谱法;比沙可啶;原料药;肠溶片;有关物质
KEYWORDS: HPLC; Bisacodyl; Raw material; Enteric-coated?tablet; Related substances
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