在pH值3.4 ～3.9的Britton-Robinson (BR)缓冲介质中,甲苯咪唑(MBZ)与曙红Y(EY)反应形成1:1的离子缔合物,体系反应不仅导致荧光光谱的猝灭,还使共振瑞利散射(RRS)和倍频散射(FDS)显著增强,最大的RRS峰位于326 nm处.荧光猝灭法、RRS法、FDS法的检出限分别为32.31、7.24和11.65 μg/L,其中RRS法的灵敏度最高.实验讨论了反应的最佳条件以及共存物质的影响.该方法用于甲苯咪唑片剂以及尿样中MBZ的测定,结果令人满意.
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