荧光分光光度法测定兔血清中左氧氟沙星的浓度

来源 :武警医学院学报 | 被引量 : 0次 | 上传用户:skyboat521
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[目的]建立测定兔血清中左氧氟沙星浓度的荧光分光光度法。[方法]以三氯乙酸沉淀蛋白,分离后加醋酸一醋酸钠缓冲液(pH4.O)测荧光强度,激发波长294nm,发射波长496nm。[结果]左氧氟沙星浓度在0.1~5.0ug/ml范围内有良好的线性关系,回归方程为Y=0.4384X—0.0812,r=0.9972(n=5)。平均回收率为94.8%,日内、日间RSD分别小于2%、3%。[结论]该方法简便、快速,适于测定兔血清中的左氧氟沙星浓度。
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