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本文利用N-烯丙基-N’-(氨基对苯磺酸钠)硫脲在一定介质中与Cu~(2+)、Ag~+离子产生的特征性反应,进行了Cu~(2+)、Ag~+的鉴定反应条件试验,并确定了鉴定方法。结果表明:在氨性介质中,试剂对Cu~(2+)的检出灵敏度(m=0.17μg,c=4.76ppm),对Ag~+的为m=0.35μg,c=10ppm。方法的选择性较好。用该法对合成样品标准样品,的分析鉴定都获得了满意结果。
In this paper, the characteristic reactions with Cu ~ (2 +) and Ag ~ + ions in a certain medium were carried out by using N-allyl-N ’- (sodium aminobenzenesulfonate) ), Ag ~ + identification reaction conditions test, and identified the identification method. The results showed that the detection sensitivity of Cu2 + in the ammonia medium was m = 0.17μg, c = 4.76ppm and m = 0.35μg, c = 10ppm for Ag +. The selectivity of the method is better. With the method of synthetic samples of standard samples, analysis and identification have been satisfied with the results.