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对测定钯的试剂和方法报导得较多,但有关用甲(月朁)类试剂光度测定贵金属的研究报告较少见。此类试剂对其他元素的测定和应用国内已进行了多种研究。本文提出了1,5-二(2-羟基-5-磺酸基苯基)-3-乙酰基甲(月朁)(简称HSPAF)的合成方法。Vorontsova虽提出用其光度测定锌,但合成方法未见报导。本文研究了HSPAF与钯(II)光度显色反应的特征及条件。试剂在0.24 NH_2SO_4-0.08M酒石酸介质中与钯生成络合物,以NANO_2使过量
There are many reports on the reagents and methods for the determination of palladium. However, there are few reports about the photometric determination of precious metals by using the A (moon) reagent. A variety of studies have been conducted in China on the determination and application of such reagents for other elements. In this paper, a synthetic method of 1,5-bis (2-hydroxy-5-sulfonatophenyl) -3-acetyl- Although Vorontsova has proposed its photometric determination of zinc, no synthetic methods have been reported. In this paper, the characteristics and conditions of photometric color reaction of HSPAF with palladium (II) were studied. The reagent formed a complex with palladium in 0.24 NH 2 SO 4 -0.08 M tartaric acid medium, with NANO 2 excess