碘化亚铜诊断管对无机汞的快速测定  

FAST DETECTION OF HgCl_2 IN CUPROUS IODIDE DIAGNOSIS TUBE

作　　者：贾仁勇[1] 王健[1] 杨通祥 魏雪欣 

机构地区：[1]四川畜牧兽医学院动物医学系,重庆荣昌402460

出　　处：《四川畜牧兽医学院学报》2000年第4期16-20,共5页Journal of Sichuan Institute of Animal Husbandry and Veterinary Medicine

基　　金：四川省教委资助项目

摘　　要：氯化亚锡在酸性环境中能把 97%左右的无机汞 (HgCI2 )还原成单质汞 ,使其以汞蒸气的形式逸出与诊断管中的碘化亚铜发生呈色反应。试验表明 :诊断管中的呈色深浅、色柱高度与检液中汞含量呈正相关 ,经方差分析 ,其不同含量的逸出率差异不显著 (F <F0 .0 5) ,达到定性和半定量的目的。In an acid conditon stannous chloride can turn 97 per cent of HgCl 2 into simple mercury, which will escape in the form of steam and react with cuprous iodide in diagnosis tube and present color change. The presented experiment indicated that the shade of the color and height of the chromatic column in the diagnosis tube correlate to the amount of mercury positively. By Methodic Error Analysis, fugacity rates of mercury do not vary with the concentration of HgCL 2 significantly(F<F 0.05 ), which makes it possible to detect HgCL 2 qualitatively and semi-qualititatively.

关 键 词：碘化亚铜诊断管 无机汞 快速测定 二氯化汞 氯化亚锡 呈色反应 水体污染 

分 类 号：X832[环境科学与工程—环境工程]