HPLC法测定注射用氨曲南的有关物质

Chinese Journal of Pharmaceutical Analysis(2010)

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Abstract
目的:建立HPLC法测定注射用氨曲南的有关物质检查方法。方法:采用AgilentHC-C18色谱柱(4.6mm×250mm,5μm);流动相:甲醇-磷酸盐缓冲液(取磷酸二氢钾0.8g,加水溶解并稀释至1000mL,用1mol·L-1磷酸溶液调pH至3.0)(20∶80)为流动相,检测波长:254nm;流速:1.0mL·min-1。结果:氨曲南与氨曲南开环物、氨曲南反式异构体及各种杂质能够完全分离。氨曲南开环物在0.04~0.36μg之间呈良好的线性关系(r=0.9999),其平均回收率为99.2%,RSD为0.9%,最低检出限为1.6ng。结论:方法简便、准确,灵敏,可用于注射用氨曲南的有关物质检查。
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Key words
HPLC,related substances,Aztreonam for injection
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