Zhejiang Daxue xuebao. Lixue ban (May 2007)
HPLC determination of an anti-epileptic drug: zonisamide(抗癫痫药唑尼沙胺的HPLC质量分数测定法)
Abstract
采用ZORBAX Eclipse XDB-C18色谱柱(4.6 mm× 150 mm,5 µm),以甲醇-水(80 : 20)作为流动相,流速为0.3 mL/min;紫外检测波长为240 nm.用卡马西平作为内标测定唑尼沙胺(zonisamide,ZNS)原药的质量分数.此方法对唑尼沙胺的线性范围是5~100 µg/mL,相关系数r=0.999 8;最低检测限为0.9 ng;平均回收率为98.52%~102.49%, RSD是0.28%~1.21%.结果表明用反相HPLC测定唑尼沙胺原药质量分数操作简便,结果准确.
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