锌与铬天青S、喹啉和混合表面活性剂多元配合物的显色反应

Study on the Colour Reaction of Zn(Ⅱ) with Chromazurol S,Quinoline and mixed Surfactants

文中研究了锌与铬天青S、喹啉和混合表面活性剂多元配合物的显色反应。该配合物在波长600nm处有最大吸收,摩尔吸光系数为1.21×10~5。在锌浓度0～16μg/25ml范围内服从比尔定律。所拟定的方法已用于测定矿石中微量锌,获得满意的结果。

A sensitive colour reaction of Zn(Ⅱ) with chromazurol S, quinoline and mixed surfactants ( CT-MAB and Tween-20 ) has been studied in the pH range of 8.3-9.5. The maximum absorption of tke complex is at 600 nm and molar absorptivity is 1.21×105. Beer's law is obeyed for solution containing 0-16g Zn/25ml. The method has been applied to determine microamounts of Zn in the ores. with satisfactory results.