VA-90气态原子化装置与AA-670原子吸收分光光度计联用测定水中硒

Determination of Trace Se in Water by AA 670 Atomic Absorption Spectrophotometry Attached VA 90 Atomization

本文采用ＶＡ－９０气态原子化装置与ＡＡ－６７０ 原子吸收分光光度计联用测定水中痕量元素硒。方法简便， 省时。结果表明， 方法回收率在９４．２％ ～１０１．６％ 之间， 相对标准偏差为２．７％ ，

This paper reports the determination of trace metal Se in water by AA 670 atomic absorption spectrophotometry attached VA 90 atomization.The method is convenient to determine element in water.The results show that the method has good precision and accuracy.The relative standard deviation of Se was 2 7%,and the rates of recovery were 94 2%—101 6%.