气动进样氢化物发生原子吸收法测定水中低含量硒  

Determination of Trace Selenium in Water by Pneumatic Sample Injection Hydrogenization AAS

作　　者：高仁贵 屈代俊 

机构地区：[1]江苏省江都市环境监测站

出　　处：《环境监测管理与技术》1998年第6期31-32,共2页The Administration and Technique of Environmental Monitoring

摘　　要：水样用盐酸和高氯酸消化，消化液在氢化物发生器中与硼氢化钾反应，生成硒化氢，用载气送入石英管原子化器，配以石墨炉程序控制，测定水中低含量硒。线性范围０μｇ／Ｌ～２５μｇ／Ｌ，特征灵敏度０５ｎｇ／ｍＬ／１％，相对标准差６８％，测定速度９０次／ｈ。Trace Selenium in water was determined by AAS with quartz tube and program controlled graphite tube aftert the digestio of water sample with Hydrochloric acid and Perchloric acid,then reaction in hydonizator with KBH 4 to form Selenium hydride which was blown to atomizor.The lineage was 0 μg/L-25 μg/L, characteristic sensitivity was 0 5 ng/mL(1%吸收), relative standard deviation was 6 8%, detecting speed was 90 times/h.

关 键 词：硒 氢化物 原子吸收 水质分析 环境水样 

分 类 号：X832.02[环境科学与工程—环境工程]