气相色谱内标法测定丙戊酸钠片的含量
Determination of Sodium valproate tablets by GC with internal standard method
作者:王春霞;韩学静;姜建国;
Author:
收稿日期: 年卷(期)页码:2016,31(06):-620-622
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:丙戊酸钠片;气相色谱法;正二十烷;含量测定;内标法;二氯甲烷;FID检测器;丙戊酸钠
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中文摘要
目的采用气相色谱法测定丙戊酸钠片的含量。方法样品先用水溶解、稀硫酸酸化、二氯甲烷萃取;采用HP-FFAP气相色谱柱(30 m×0.53 mm,1.00μm),柱温150℃,氢火焰离子化检测器(FID),分流比为1∶1;用正二十烷为内标物,按内标法以峰面积计算含量。结果 0.05~0.5 mg·m L-1丙戊酸钠与内标峰面积呈良好的线性关系(r=0.9999,n=6),最低检出限3.4 ng,平均回收率为99.8%(n=9);样品含量的平均值为96.3%,RSD=0.3%(n=6)。结论所用方法准确、专属性强、精密度高,可用于丙戊酸钠片的含量测定。
参考文献
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