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RP-HPLC法测定蒲地灌肠液中盐酸利多卡因的含量

Research and Practice on Chinese Medicines(2015)

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Abstract
目的 建立以RP-HPLC法测定蒲地灌肠液中盐酸利多卡因含量的方法.方法 采用Kromasil C18色谱柱(4.6 mm×250 mm,5μm),流动相为磷酸盐缓冲溶液(取1 mol·L-1磷酸二氢钠溶液1.3ml和0.5 mol·L-1磷酸氢二钠溶液32.5 ml,置1 000 ml量瓶中,加水稀释至刻度,pH=8.0)-乙腈(50∶50);检测波长:220 nm;流速:1ml·min-1;柱温:30℃.结果 盐酸利多卡因在4.35~87 μg·ml-1范围内呈良好的线性关系,平均加样回收率为102.58%,RSD为1.05%.结论 该方法准确、简便,可用于蒲地灌肠液中盐酸利多卡因的含量控制.
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Key words
high performance liquid chromatography,lidocainehy drochloride,content determination
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