文献类型：期刊文献

中文题名：水中一氯胺和二氯胺的紫外连续流动测定

英文题名：CONTINUOUS FLOW DETERMINATION OF MONO- AND DI-CHLORAMINE IN AQUATIC PHASE

作者：黄雪娟[1];张大年[1];青木丰明[2]

机构：[1]华东理工大学环境工程研究所,上海200237;[2]日本大阪府立大学工学部

年份：1998

卷号：17

期号：3

起止页码：286

中文期刊名：环境化学

外文期刊名：Environmental Chemistry

收录：CSTPCD;;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：中日合作研究项目

语种：中文

中文关键词：氯胺;连续测定;水质监测;紫外分光光度法

外文关键词：monochloramine, dichloramine, UV spectra, continuous determination.

摘要：本文研究了二氯胺与溴化钾的反应及其产物,采用微孔渗透膜分离-紫外分光测定系统,测定水溶液中的一氯胺与二氯胺。本法的线性范围为2×10^(-5)mol·l^(-1)—1×10^(-2)mol·l^(-1),标准偏差在2×10^(-4)mol·l^(-1)时为4.3％。
Monochloramine and dichloramine both are such compounds, which were always produced from water and/or wastewater treatment by chlorination. They cannot be directly determined by traditional UV spectrometric method, since of dichloramine influences determination of monochloramine at 243nm. Dichloramine selectively reacts with KBr at pH 5. The reacting products become ionic compounds, when its hydrolyses at pH 11. The reaction of dichloramine with KBr and reacting products was investigated in this paper. Quickly and simply directly determination of monochloramine and dichloramine in aquatic phase can be achieved by microporous permeation tube separator and UV spectrometric detection system. By this method, the linear range are from 2×10-5mol·l-1 to 1×10-2mol·l-1, the standard variation are 4. 3% and 1. 8% at 2×10-4mol·l-1 and 1×10-3mol·l-1 respectively.