萘的极谱测定法及其应用  

The determination of naphthalene by polarography and its applying

作　　者：韦进宝[1] 张利华[1] 

机构地区：[1]武汉大学环境科学系,湖北武汉430072

出　　处：《中国环境监测》1999年第5期18-20,共3页Environmental Monitoring in China

摘　　要：研究了萘的极谱吸附波及其性质。萘在５０％ Ｎ，Ｎ－二甲基甲酰胺和０．１ｍ ｏｌ／Ｌ氨－氯化铵介质中于－ １．０５ｖ（ｖｓ．ＳＣＥ）处产生一波形好的二阶导数极谱波。在此实验条件下，萘浓度在５．００×１０－ ６ ｍ ｏｌ／Ｌ～５．００×１０－ ４ ｍ ｏｌ／Ｌ范围内与导数波峰电流（Ｉｐ）呈良好的线性关系。检测下限为５．００×１０－ ６ｍ ｏｌ／Ｌ。本方法可测煤、卫生球和沥青中的萘含量。By use of single sweep polarography in 50% N,N dimethylformamide and ammonia ammonium chloride medium, a second derivative polarographic wave which has a good shape is observed for naphthalene The peak potential is about -1 05v(vs SCE) In this test condition, the concentration of naphthalene is linear with peak current in the range of 5 00×10 -6 M to 5 00×10 -4 M, the detection limit is 5 00×10 -6 M This method can be used to determine naphthalene content of the enviromental sample such as coal, mothball and asphaltic bitumen

关 键 词：萘 极谱分析 吸附波 

分 类 号：O657.14[理学—分析化学] O625.151[理学—化学]