摘要
本文描述了用化学修饰探针原子吸收法测定水中无机锡(Ⅳ)的最佳测定条件,并测定了自来水和矿泉水中的无机锡(Ⅳ)。水样经盐酸酸化后直接测定,测定样品的最低检测限为0.4 ng/mL,线性范围是0.4～20 ng/mL。4 ng/mL的锡(Ⅳ)试样,11次测定结果的相对标准偏差为5.7%。
The optimum conditions for the determination of Sn(Ⅳ) in drinking water and mineralwater by trioctylphosphine oxide-coated tungsten probe-AAS are described. With the acidifiedsample, the detection range is 0.4 ng/mL. The linear range covers 0.4～20 ng/mL, Therelative standard deviation of eleven water samples containin 4 ng/mL tin was 5.7%.
出处
《分析测试学报》
CAS
CSCD
1993年第2期64-67,共4页
Journal of Instrumental Analysis
关键词
原子吸收法
锡
给水
矿泉水
Trioctyl phosphine oxid-coated tungsten probe
Graphite furnace AAS
Tin(Ⅳ)
Drinking water and mineral water
