单扫描示波极谱法测定水中微量氯仿

单扫描示波极谱法测定水中微量氯仿 DETERMINATION OF TRACE CHLOROFORM IN BLEACHING-WASTEWATER AND DRINKING-WATER BY SINGLE-SWEEP OSCILLOPOLAROGRAPHY 韦进宝 Wei Jinbao Liao Yiyong 1 first-author 廖宜勇 1 武汉大学环境科学系 武汉大学环境科学系 Department of Environment Science,Wuhan University Department of Environment Science,Wuhan University 在乙二胺-EDTA 底液中,氯仿于-1.68V 处（vs.SCE）产生一灵敏的极谱吸附波.氯仿浓度在2.06×10 -5 ～1.23×10 -2 mol·L -1 范围内与导数波高有线性关系.检测限为1.03×10 -5 mol·L -1 .应用本方法可直接测定漂白废水中的氯仿.经预先富集后,对自来水的氯仿也能进行测定.并取得满意的结果. A sensitive polarographic adsorptive wave of chloroform was observed with E p =-1. 68V（vs.S.C.E） in the solution of 50//00 ethylenediamine -1.25×10 -2 mol·L -1 EDTA.The con- centration of chloroform is linear with the peak height of the derivative wave in the range 2.06×10 -5 ～1.23×10 -2 mol·L -1 .The limit of detection for determination of chloroform is 1.03×10 -5 mol ·L -1 .The property and the possible emchanism has been discussed. With 30 percent ethyl alcohol inhibitting the disturbance,the concentration of chloroform in bleaching waster ater from a paper mill has been monitored by directly adding the wastewater sample to the solution.An enrichment proceeding has also been applied to determinate the trace choroform in drinking water successfully. 氯仿 极谱分析 漂白废水 自来水 chloroform polarography bleaching watsewater drinking water O657.11 1993-04-01 2021-04-01 4