摘要
基于BrO3-与I-在酸性介质中发生氧化还原反应形成具有紫外吸收的I3-的性质,采用了紫外分光光度法测定水体中微量溴酸盐含量,方法加标回收率在98%～102%之间,相对标准偏差RSD为1.7%,线性相关系数为0.9991,检测限为4.0μg/L,能满足现有标准的检测要求。
A simple ultraviolet-spectrophotometric method was developed for the Determination of bro mate in water samples. Bromate reacts with iodide in acidic media to produce tri-iodide which has a UV ab- sorbance at 288 nm and thus can be monitored spectrophotometrically. The recovery of bromate Determi- nation by UV spectrophotometry was 98%-102%, and the relative standard deviation was 1.7%（n=9）. The calibration equation for bromate analysis has a good linearity with regression coefficient of 0. 9991. The detection of limit for bromate was 4.0 tLg/L, showing that the method can meet the testing require ment.
出处
《中国无机分析化学》
CAS
2012年第2期14-16,33,共4页
Chinese Journal of Inorganic Analytical Chemistry
基金
国家环保公益性行业科研专项项目(200809016)
江苏省环境工程重点实验室开放基金(KF2009008)
关键词
溴酸盐
紫外分光光度法
含量检测
s bromate ultraviolet spectrophotometry determination
