LC-MS法测定曲马多在人体中的血药浓度

Pharmacy Today(2012)

Cited 22|Views12
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Abstract
目的建立LC-MS法测定曲马多在血浆中的浓度。方法血浆样品经过饱和NaHCO3溶液碱化后,用乙酸乙酯萃取;流动相为甲醇-10 mmol/L(含0.5%甲酸)的醋酸铵水溶液(60︰40,v/v),流速为1.0 ml/min,采用电喷雾离子化(ESI),以选择性离子检测(SIM)方式进行检测。结果曲马多的线性范围在5.075~609.0 ng/ml,最低定量限为5.075 ng/ml,方法提取回收率为82.7%~85.9%,相对回收率为97.9%~102.0%,日内日间RSD均<10%。结论本方法准确,灵敏,重现性好,可用于曲马多血药浓度的检测及药动学的相关研究。
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Key words
LC-MS,tramadol,plasma concentration
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