两步酸化DPASV对乐安江沉积物水提液中铜的毒性形态分析  

Copper Speciation Analysis of Sedimentary Elutriates from Le An River by Double Acidification DPASV

作　　者：刘清[1] 马梅[1] 王子健[1] 汤鸿霄[1] 

机构地区：[1]中国科学院生态环境研究中心环境水化学国家重点实验室,北京100085

出　　处：《分析科学学报》1996年第1期43-45,共3页Journal of Analytical Science

基　　金：国家自然科学基金资助课题

摘　　要：本文采用两步酸化微分脉冲阳极溶出伏安法(DAM-DPASV)对乐安江沉积物水提液中的铜进行形态分析,并与直接DPASV测试及生物测试(D,magna)结果进行了比较,结果表明:直接DPASV测试因水体中络合剂和表面活性剂的干扰而低估了毒性形态,而两步酸化DPASV较好地反映出了铜的毒性形态.Labile copper in sedimentary elutriates from Le An River were measured both by direct Differential Pulse Anodic Stripping Voltammetry(DPASV) and a double acidification DPASV. Comparing the results of chemical measurements with that of Daphnia magna test,it was found that direett DPASV measurement underestimated the toxicity of copper in most cases and the double acidification DPASV provided better results.

关 键 词：铜 形态分析 伏安法 沉积物 

分 类 号：X132[环境科学与工程—环境科学] O657.14[理学—分析化学]