Tb3+能极大增强Ce(Ⅳ)-SO32 - -OFLX体系的化学发光强度,据此提出了敏化化学发光测定氧氟沙星的新方法.本法的线性范围为2×10-9 g/mL～6×10-7 g/mL,检出限为2.4×10-10 g/mL,对5×10-8.g/mL OFLX平行测定11次,相对标准偏差为2.9％.利用该法测定了氧氟胶囊中氧氟沙星的含量,并对氧氟沙星胶囊和尿样进行了回收率测定,回收率在98.5％～105.6％,结果令人满意.
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