| 浊点萃取-分光光度法测定水中痕量六价铬 |
| |
| 引用本文： | 金洪洙,张晓霞,刘东方,黄学铭.浊点萃取-分光光度法测定水中痕量六价铬[J].环境监测管理与技术,2009,21(4):51-53. |
| |
| 作者姓名： | 金洪洙 张晓霞 刘东方 黄学铭 |
| |
| 作者单位： | 长春理工大学化学与环境工程学院,吉林,长春,130022 |
| |
| 摘 要： | 利用非离子表面活性剂Triton X-114的浊点现象萃取，以二苯碳酰二肼为显色剂，采用分光光度法测定水中痕量六价铬，优化了试验条件，考察了共存离子的干扰。方法在0mg／L-12.0mg／L范围内线性良好，检出限为0.0015mg／L，标准溶液测定的RSD为2.7％，水样加标回收率为98.1％-102％。
|
| 关 键 词： | 六价铬 浊点萃取 分光光度法 水质 |
Determination of Trace Cr(Ⅵ) in Water by Spectrophotometry with Cloud Point Extraction |
| |
| JIN Hong-zhu,ZHANG Xiao-xia,LIU Dong-fang,HUANG Xue-ming.Determination of Trace Cr(Ⅵ) in Water by Spectrophotometry with Cloud Point Extraction[J].The Administration and Technique of Environmental Monitoring,2009,21(4):51-53. |
| |
| Authors: | JIN Hong-zhu ZHANG Xiao-xia LIU Dong-fang HUANG Xue-ming |
| |
| Institution: | College of Chemistry and Environmental Engineering;Changchun University of Science and Technology;Changchun;Jilin 130022;China |
| |
| Abstract: | A method was established for determination trace Cr（Ⅵ） in water by spectrophotometry with di- phenylcarbohydrazide as color reveal agent and cloud point extraction of surface active agent Triton X-114. The experimental conditions were optimized and effect of interfering ion was observed to produce the following results ： good linearity in the range from 0 mg/L to 12.0 mg/L, the detection limits 0. 001 5 mg/L, the RSDs of the standard solution 2.7% , the recoveries of water samples from 98.1% to 102%. |
| |
| Keywords: | Cr（Ⅵ） Cloud point Spectrophotometry Water quality |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《环境监测管理与技术》浏览原始摘要信息 |
| 点击此处可从《环境监测管理与技术》下载免费的PDF全文 |
