摘要
目的建立环境水样中钾的连续流动分析方法。方法用ALLIANCE自动分析仪测定环境水样中的钾,并与原子吸收法作了对照。结果方法的检出限为0.5μg/mL,在浓度5~1000μg/ml范围内呈线性关系,加标回收率在97%~102%之间,相对标准偏差为0.82%~1.23%。结论连续流动分析方法可准确、快速地测定环境水样中的钾。
Objective To establish a continuous flow analytical method for determination of potassium in environmental water sample.Methods The concentration of patassium in environmental water sample was determined by ALLIANCE auto-matic analyzer,and its data were compared with the data obtained from atomic absorption spectrophotometry.Results The de-tection limit of this method was0.5μg /ml.The method revealed linear relationship at the potassium concentrations of5-1000μg /ml.The recovery rate of standard addition method ranged from to97%to102%.The relative standard deviations were0.82%-1.23%.Conclusion The contents of potassium in environmental water samples could be accurately and rapidly deter-mined by continuous flow analysis.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2003年第3期181-182,共2页
Journal of Environment and Health
关键词
钾
连续流动分析
环境水样
Potassium
Continuous flow analysis
Environmental water sample