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本文研究了meso-四(2-氯苯基)叶啉与铁(Ⅱ)的显色反应。结果表明,在pH3.6的HAc-NaAc的缓冲溶液中,表面活性剂存在下,在沸水浴上加热15分钟能生成络合物,ε为1.1×10~6。用本法测定了白云石和茶叶中的铁。
In this paper, the color reaction of meso-tetrakis (2-chlorophenyl) -indoline with iron (Ⅱ) was studied. The results showed that the complex was formed by heating in HAc-NaAc buffer at pH 3.6 for 15 minutes in the presence of a surfactant in a boiling water bath with ε of 1.1 × 10 -6. Determination of iron in dolomite and tea using this method.