氢化物发生-原子荧光法用于海水中痕量铅定量分析的研究
Study on the Quantitative Analysis of Trace Lead in Seawater Using Hydride Generation Atomic Fluorescence Spectrometry
程君琪 1张健1
作者信息
- 1. 江苏宣溢环境科技有限公司,江苏 无锡 214000
- 折叠
摘要
建立了氢化物发生-原子荧光法测定海水中痕量铅的方法.海水只需经简单过滤处理后用氢化物发生-原子荧光法直接进样分析,以草酸作为掩蔽剂、甲酸作为增敏剂、铁氰化钾作为氧化剂,采用原子荧光仪进行分析.海水中铅在1.0～50 μg/L质量浓度范围内具有较好的线性关系,方法的回收率为 95.0%～107.0%,相对标准偏差为 2.1%,本方法检出限为0.1 μg/L.方法无需手动进行复杂的前处理过程,且准确性好,可用于大批量海水中铅的定量分析.
Abstract
This experiment established a method for the determination of trace lead in water and seawater using hydride generation atomic fluorescence spectrometry(HG-AFS).Seawater only needs to be subjected to simple filtration treatment and directly analyzed by hydride generation atomic fluorescence spectrometry.Oxalic acid is used as a masking agent,formic acid is used as a sensitizer,and potassium ferrocyanide is used as an oxidant.The analysis is carried out using an atomic fluorescence analyzer.Lead in seawater has a good linear relationship within the concentration range of 1.0 to 50 μg/L.The recovery rate of the method is 95.0%to 107.0%,and the relative standard deviation is 2.1%.The detection limit of this method is 0.1 μg/L.The method does not require manual and complex pre-treatment processes,and has good accuracy,which can be used for quantitative analysis of lead in large quantities of seawater.
关键词
原子荧光/海水/铅/定量分析Key words
HG-AFS/seawater/lead/determination引用本文复制引用
出版年
2024
NETL
NSTL
万方数据