摘要
为了实现海水中金属元素的绿色分离和快速检测,建立了新型螯合树脂为填料,固相萃取-电感耦合等离子体质谱(ICP-MS)法测定海水中6种金属元素含量的方法。海水中Cu、Pb、Co、Ni、Cr、Mo金属离子与亚氨基二乙酸型螯合树脂形成螯合物,经固相萃取、洗脱,实现金属离子从海水中定量分离富集。在最佳实验条件下,测得方法的相对标准偏差(RSD)为1.7%~3.6%,加标回收率为82.6%~102%,检出限为0.03~0.15μg/L。采用亚氨基二乙酸型螯合树脂为填料的固相萃取,实现了海水分析的绿色样品前处理方法,与ICP-MS法相结合用于海水标准样品和实际样品的分析,获得了满意的结果。
In order to achieve green separation and rapid detection of metal elements in seawater,a method for the determination of six heavy metals in seawater by solid phase extraction inductively coupled plasma mass spectrometry(ICP-MS)with a new chelating resin as filler was established.Cu,Pb,Co,Ni,Cr,Mo metal ions in seawater form chelates with iminodiacetic acid chelating resin.After solid-phase extraction and elution,metal ions can be quantitatively separated and enriched from seawater.Under the optimum experimental conditions,the relative standard deviation of the method was 1.7%-3.6%,the recovery was 82.6%-102%with the detection limit of 0.03-1.5μg/L.In this study,a green sample pretreatment method for seawater analysis was realized by solid phase extraction with iminodiacetic acid chelating resin as filler.This method was combined with ICP-MS to analyze seawater standard samples and actual samples,and satisfactory results were obtained.
作者
贾亮亮
范培栋
张永辉
董凌云
JIA Liangliang;FAN Peidong;ZHANG Yonghui;DONG Lingyun(Institute of Hydrology and Engineering Geological Prospecting Hebei Province,Shijiazhuang,Hebei 050021,China;Baoding University,Baoding,Hebei 071000,China)
出处
《中国无机分析化学》
CAS
北大核心
2023年第2期117-122,共6页
Chinese Journal of Inorganic Analytical Chemistry
基金
河北省水勘院2022年度科研、青年创新创效立项项目(2021110902)。
