引用本文:

【打印本页】【下载PDF全文】【View/Add Comment】【Download reader】【 Close 】

过刊浏览高级检索

本文已被：浏览 1804次下载 1110次	码上扫一扫！
分享到：微信更多字体:加大+\|默认\|缩小-
黄河中游内蒙三个地段水体中天然配体与重金属络合容量研究
嘎日迪, 曲筱梅, 郭博书, 刘颖
内蒙古师范大学化学系呼和浩特 010022

摘要:

于1990年10月 - 1992年7月在室内条件下测定黄河中游乌拉特前旗、包头黄河大桥及清水河地段水体中天然配体与铜、铅、锌、镉反应的络会容量（C?C），计算总条件稳定常数（K）和络合容量指数（I）。实验证明：乌拉特前旗水体中络合客量最大，包头和清水河相近。络合容量顺序为：Cu＞Zn＞Cd＞Pb，和可溶性有机碳及碳酸盐分析结果一致。总条件稳定常数为：K_PbL最大，K_CuL，K_ZnL，K_CdL相近。和长江水做了比较。络合容量指数在IgK相近情况下，随络合容量增大而增大。

关键词: 络合容量黄河重金属 ASV法

DOI：

分类号:

基金项目:内蒙古自然科学基金!9020

STUDY ON THE APPARENT COPMLEXATION CAPACITY OF HEAVY METAL WITH NATURAL LIGANDS IN THE MIDDLE REACHES OF THE HUANGHE RIVER OF NEI MENGGU

Ga Ridi, Qu xiaomei, Guo Boshu, Liu Ying

Chemical Department, Inner Mongolia Normal University, Huhehaote, 010022

Abstract:

Anode stripping voltametry used in determing the conditional stability constants and complexation capacity indexes of heavy metals (Cu, Pb, Zn, Cd) in the middle reaches of the Huanghe River in Nei Menggu showed high complexation capacity values at Wulate similar to those at Baotou Bridge and Qingshui river, that the complexation capacity sequence (Cu > Zn > Cd >Pb) concords with results of analysis on DOC and carbonate; that the stability constants (K_PbL, maximum, K_CuL,K_ZnL, K_CdL, are similar; and that when lgK are similar, the greater the complexation capacity, the greater the complexation capacity index.

Key words: Complexation capacity, Huanghe River, Heavy metal, ASV method

Copyright © Editorial Office for Oceanologia et Limnologia Sinica    Copyright©2008 All Rights Reserved
Supervised by: China Association for Science and Technology   Sponsored by: Chinese Society for Oceanology and Limnology, Institute of Oceanology and Limnology, CAS.
Address: 7 Nanhai Road, Qingdao, China.    Postcode: 266071    Tel: 0532-82898753  E-mail: liuxiujuan@qdio.ac.cn
Technical support: Beijing E-Tiller Co.,Ltd.