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１ 引 言砷（Ⅲ）对生物体的影响较大，在人体代谢过程中易于某些部位累积，引起慢性中毒，已列为公害病之一，因此，痕量砷（Ⅲ）的测定意义重大。砷（Ⅲ）的测定多采用ＡＡＳ法及ＩＣＰ法。近年来建立了一些荧光分析方法。由于实际样品中的砷（Ⅲ）含量极低，测定时常要富?
1 Introduction Arsenic (Ⅲ) has a great impact on the organism. It is easy to accumulate some parts in the process of human metabolism and causes chronic poisoning. It has been listed as one of the public hazard diseases. Therefore, the determination of trace arsenic (Ⅲ) is of great significance. Determination of arsenic (Ⅲ) and more use of AAS method and ICP method. In recent years, some fluorescence analysis methods have been established. Due to the actual sample of arsenic (Ⅲ) content is very low, the determination often rich?