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dc.contributor.author林继军
dc.contributor.author林文博
dc.contributor.author弓振斌
dc.contributor.author段华玲
dc.contributor.author黄佳华
dc.date.accessioned2016-05-17T03:00:01Z
dc.date.available2016-05-17T03:00:01Z
dc.date.issued2011
dc.identifier.citation分析测试学报,2011,(12):108-113
dc.identifier.issn1004-4957
dc.identifier.otherTEST201112020
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108072
dc.description.abstract建立了聚丙烯酸螯合-超滤(PCP-uf)分离富集、电感耦合等离子体质谱(ICP-MS)测定海水中痕量稀土及金属元素的方法。PH值高于7.5时,海水中的稀土离子、Cu2+、Pb2+、Cd2+、CO2+、nI2+等与聚丙烯酸(PAA)形成稳定的高分子螯合物,经超滤截留、硝酸解离后,实现了稀土及金属元素从海水中的分离、富集;采用ICP-MS的全定量数据采集模式、内标校正的标准校正曲线法对待测元素进行定量分析。在优化实验条件下,方法的相对标准偏差(rSd)为1.7%~7.3%,加标回收率为73%~96%;方法的定量下限(lOQS,10σ)为0.23~13.9 ng/l,方法空白为0.09~8.38 ng/l。建立的方法可用于近岸及河口海水中痕量稀土及金属元素的同时测定。
dc.description.abstractA method of polyacrylic acid-complexation and ultrafiltration for matrix modification and inductively coupled plasma mass spectrometry(ICP-MS)was developed for the determination of 24 trace level of rare earth elements(REEs) and metal elements in coastal and estuarine seawater.REEs ions,Cu2+,Pb2+,Cd2+,Co2+,Ni2+ could reacted with polyacrylic acid(PAA) to form stable complexes when the pH value was above 7.5,which could be separated and enriched absolutely after trapped and eluted from the ultrafilter.Full quantitative data collection mode and internal standard calibration curve were used for the ICP-MS determination.Under the optimized conditions,the relative standard deviations(RSDs) were in the range of 1.7%-7.3%,and the spiked recoveries were between 73% and 96%.The limits of quantitation(LOQs,10σ) ranged from 0.23 ng/L to 13.9 ng/L.The method blank ranged from 0.09 ng/L to 8.38 ng/L.The developed method could be applied in the simultaneous determination of REEs and metal elements in coastal and estuarine seawater.
dc.description.sponsorship厦门大学近海海洋环境科学国家重点实验室自主创新项目(MELRI0703)
dc.language.isozh_CN
dc.subject聚丙烯酸-金属螯合物
dc.subject超滤
dc.subject电感耦合等离子体质谱
dc.subject海水
dc.subject稀土及金属元素
dc.subjectpoly(acrylic acid)-metal complex
dc.subjectultrafiltration
dc.subjectinductively coupled plasma mass spectrometry
dc.subjectseawater
dc.subjectrare earth and metal elements
dc.title聚丙烯酸螯合-超滤分离富集电感耦合等离子体质谱测定近岸及河口海水中24种痕量稀土及金属元素
dc.title.alternativeDetermination of 24 Trace Level of Rare Earth and Metal Elements in Coastal and Estuarine Seawater by Polymer Complexation-Ultrafiltration Technique and Inductively Coupled Plasma Mass Spectrometry
dc.typeArticle


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