摘要
本文用没食子酸—H_2O_2—甲醛—CO(Ⅱ)化学发光体系建立了痕量钴的化学发光测定法.方法检出限达0.5ng/ml 钴,线性范围是1×10^(-9)—8×10^(-7)g/ml 钴,测定的相对标准偏差小于1.0%,考察了24种常见离子的干扰情况.方法已用于水样中痕量钴的测定.
In this Raper a new method for determining cobalt by FIA With GA—H_2O_2—HCHO—Co(Ⅱ)chemiluminescence system has been reported.The detection limit is 0.5ng/ml cobalt.The linear range of the calibration curve is 1×10^(-9)—8×10^(-7)g/ml cobalt.The relative standard deviation is less than 1.0%.The method has been applied to determine cobalt in water samples
出处
《环境保护科学》
CAS
1993年第1期75-77,共3页
Environmental Protection Science
关键词
化学发光分析
没食子酸
甲醛
钴
Flow—injection
Chemiluminescene
Gallicacid
Formaldehyde
Cobalt
