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高效液相色谱法测定磺胺间甲氧嘧啶的含量

Chinese Journal of Veterinary Drug(2017)

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Abstract
建立了兽药磺胺间甲氧嘧啶钠注射液中磺胺间甲氧嘧啶含量的高效液相色谱测定法.以C18为固定相,0.1%磷酸溶液-乙腈(80∶20)为流动相,流速1.0 mL/min,柱温40 ℃,检测波长270 nm,采用外标法进行定量.磺胺间甲氧嘧啶的线性范围为5.0~100.0 μg/mL,回归方程为Area=40.333×Amt-18.843 (n=5),相关系数大于0.999.从高(120%)、中(100%)和低(80%)三个添加水平的检测结果可以看出,磺胺间甲氧嘧啶的回收率为96.27%~98.30%.该方法简单,准确,精密度好,回收率高,可以用于测量磺胺间甲氧嘧啶钠注射液中磺胺间甲氧嘧啶的含量.
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