摘要
研究了对磺酸苯亚甲基罗丹宁（ＳＢＤＲ）与金的显色反应。在酸性介质中，阴离子表面活性剂十二烷基苯磺酸（ＳＤＢＳ）存在下，ＳＢＤＲ与金反应生成２：１稳定红色络合物，λｍａｘ＝５３０ｎｍ，ε＝６．６５×１０４Ｌ／（ｍｏｌ·ｃｍ）。金的质量浓度在０～５０υｇ／２５ｍｌ内，符合比尔定律。该方法用于电镀。业废水中金的测定，结果令人满意。
The color reaction of gold(Ⅲ) with p- sulfobenzylidene- rhodanine (SBDR ) was studied. In the presence of hydrochloric acid solution and anion surface active agent SDBS medium,SBDR Can react with gold(Ⅲ) to from a stable 2: 1 red complex. The malor absorptivity is 6. 55 x 104L. (mol. cm) -1 at 530nm, Beer's law is Obeyed in range of 0~ 50υg/25ml, This method can be applied to the determination of gold in the waste water of electroplate industry with satisfactory results.
出处
《黄金》
CAS
2001年第4期44-45,共2页
Gold
