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若干氨羧络合剂能生成许多稳定的金属螯形化合物,因此近年来乙二胺四乙酸(EDTA)(Ⅰ)等试剂广用在若干金属的测定,但这种方法还没有应用在锑的分析。Brintzinger等曾经报道三羧基甲氨(Ⅱ)虽能与锑生成螯形化合物,但产物很不安定。Pribil曾报导几种氨羧络合剂与Sb~(+++)作用的极谱数据,说明这些化合物有与Sb~(+++)生成螯形化合物的可能。为了对应用乙二胺四乙酸
A number of ammonia complexing agents can generate many stable metal chelate compounds. Therefore, some reagents such as ethylenediaminetetraacetic acid (EDTA) (I) have been widely used in the determination of several metals in recent years. However, this method has not been applied in antimony analysis. Brintzinger et al. Have reported that tricarboxymethylammonium (II) can form chelate compounds with antimony, but the product is not stable. Pribil reported the polarographic data of the interaction between several ammolybdates and Sb ~ (+++), indicating that these compounds may form chelate compounds with Sb ~ (+++). In order to use ethylenediaminetetraacetic acid