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流动注射分光光度法测定环境水样中镉
引用本文:蒋春刚,洪陵成,王林芹.流动注射分光光度法测定环境水样中镉[J].环境监测管理与技术,2008,20(5):33-35.
作者姓名:蒋春刚  洪陵成  王林芹
作者单位:1. 河海大学环境科学与工程学院,江苏,南京,210098
2. 河海大学环境科学与工程学院,江苏,南京,210098;南京德林环保仪器有限公司,江苏,南京,210001
摘    要:建立了镉-氨水·氯化铵缓冲溶液-对偶氮苯重氮氨基偶氮磺酸-甲醛高灵敏度显色体系下,采用流动注射技术测定环境水样中镉的方法,优化了试验条件,讨论了共存离子与色度的影响及消除办法。方法在6.00μg/L~460μg/L范围内线性良好,检出限为0.1μg/L,实际水样测定的加标回收率为986%~102%。

关 键 词:  流动注射  分光光度法  水质

Determ ination of Cadm ium in the Water by Flow Injection Spectrophotometry
JIANG Chun-gang,HONG Ling-cheng,WANG Lin-qin.Determ ination of Cadm ium in the Water by Flow Injection Spectrophotometry[J].The Administration and Technique of Environmental Monitoring,2008,20(5):33-35.
Authors:JIANG Chun-gang  HONG Ling-cheng  WANG Lin-qin
Institution:JIANG Chun-gang, HONG Ling-cheng, WANG Lin-qin (1. Environmental Science and Engineering Department, Hohai University, Nanjing, Jiangsu 210098, China; 2. Nanjing Delin Environmental Instruments Co. Ltd, Nanjing , Jiangsu 210001 , China)
Abstract:A method with high sensitivity system of Cd -NH3·NH4Cl -ADAAS was established to detercadmium in water by flow injection. The test conditions were optimized and the influence of eoexistions with color as well as its removal were discussed. The good linear relation of the method was obtained in range from 6. 00 μg/L to 460 μg/L. The detection limit was 0. 1 μg/L,recoveries of practical samples 98.6% - 102%.
Keywords:Cadmium  Flow injection  Spectrophotometry  Waterquality
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