原子吸收火焰光度法测定水中总铬实验条件的探讨  

Study on experimental conditions of determination the total chromium in water by flame atomic absorption spectrophotometry

作　　者：王新建[1] 刘健[1] 

机构地区：[1]乌鲁木齐市疾病预防控制中心,新疆830026

出　　处：《医学动物防制》2012年第4期462-464,共3页Journal of Medical Pest Control

摘　　要：铬是生物体所必需的微量元素之一,在生物机体糖代谢和脂代谢过程中发挥特殊作用,但过量铬对人体产生不利影响。水中铬也是国标中水质检测项目指标之一,水中铬的检测目前采用的国标法主要有GB7466-1987高锰酸钾氧化-二苯碳酰二肼光度法(总铬);GB5750-2006二苯碳酰二肼光度法(六价铬)以及《水和废水监测分析方法》(第四版)原子吸收分光光度法(总铬);ICP-AES法和滴定法等。近年来,由于原子吸收分光光度计的使用和普及,原子吸收法测定水中总铬成为多数实验室检测的首选方法。Chromium is one of essential microelements in a living organism,and it plays an specific action in the process of glycometabolism and lipid metabolism.However,excessive chromium was harmful to people＇ health.The chromium content in water is one of water examination indexes.At present,adopting the follow methods to detect the chromium,the methods were GB7466-1987,KMnO4 oxidized diphenylcarbazide spectrometry（total chromium）,GB5750-2006,Diphenylcarbazide by Speetrophotometry（Cr-VI） and atomic absorbent spectrophotometry（total chromium） from test and analyses method of water and waste water（version 4th）,ICP-AES and titration,etc.Recently,owing to use and universal of atomic absorption spectrophotometer,it was the prefer method of laboratory tests the chrome in water.

关 键 词：原子吸收火焰光度法 总铬 实验条件 

分 类 号：R123.1[医药卫生—环境卫生学]