示波极谱法测定空气中微量氯化苦  

The Determination of Trace Chloropicrin in Air by Oscillopolarography

作　　者：陈桂贻[1] 许支农[1] 刘蔼成[1] 汤利民[1] 

机构地区：[1]湖南省劳动卫生职业病防治所,中国湖南长沙410007

出　　处：《实用预防医学》2002年第5期470-471,共2页Practical Preventive Medicine

摘　　要：目的　研究测定空气中氯化苦的新方法。　方法　将氯化苦的水解产物亚硝酸与 8-轻基喹啉反应生成偶氮化合物 ,用示波极谱测定。　结果　该化合物在峰电位 - 0 .5 4 v(vs.SCE)处有一灵敏吸附波 ,波高与氯化苦含量在 0 .0 2～1.0μg/ ml呈良好的线性关系 ,检出下限为 0 .0 2μg/ ml。　结论　操作简便快速 ,选择性好。用于空气样品中氯化苦的测定 ,结果满意。Objective To study the new method of determination of chloropicrin in air. Methods Oscillopolarography was used to assay the azo-compound produced by the reaction of chloropicrin and Oxin. Result The azo-compound gives a sensitive absorption wave at peak potential of -0.54V(vs.SCE), the wave height is directly proportional to concentration of chloropicrin over the range of 0.02～1.0 μg/ml. The detection limit is 0.02 μg/ml. Conclusion The method is simple and selective. When appliced to air samples,it gives almost the same results as those by colorimetry.

关 键 词：空气 氯化苦 测定 空气样品测定 比色法 8-轻基喹 啉 偶氮化合物 示波极谱法 

分 类 号：R122.1[医药卫生—环境卫生学]