导数示波极谱法测定微量的四氯化碳

导数示波极谱法测定微量的四氯化碳 DETERMINATION OF TRACE TETRACHLOCRO-METHANE IN ATMOSPHERE BY DERIVATIVE OSCILLOPOLAROGRAHY 韦进宝 1 first-author 刘亚力 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 以导数示波极谱法测定微量的四氯化碳，在１．２０ｍｏｌ·Ｌ－１乙二胺－０．００２５ｍｏｌ·Ｌ－１ＥＤＴＡ底液中，于－１．７０Ｖ处（ｖｓ．ＳＣＥ）获得一灵敏的极谱吸附波．四氯化碳浓度在１．００×１０－５～３．００×１０－３ｍｏｌ·Ｌ－１范围内与导数波高有线性关系，检测限为６．００×１０－６ｍｏｌ·Ｌ－１． This paper reports determination of trace tetrachloro-methane by derivativeoscillopolarograpy. A sensitive polarographic adsorptive wave is obtained in a system of1. 20 mol·L-1 ethylenediamine～0. 0025 mol·L-1 EDTA at - 1. 70V（Vs. SCE）. The concentration of tetrachloro-methane is linear with the peak height of the derivative wave in therange 1. 00 ×10-5 ～ 3. 00 × 10-3mol· L-1. The limit of detection for determination of tetrachloro-methane is 6. 00 × 10-6mol.·L-1. 四氯化碳 极谱分析 微量分析 tetrachloro-methane polarography trace analysis O613.71 1995-04-01 2021-04-01 4