Trace lead measurement and on-line removal of matrix interference in seawater by isotope dilution coupled with flow injection and ICP-MS

doi:10.1016/j.aca.2003.11.033

	Trace lead measurement and on-line removal of matrix interference in seawater by isotope dilution coupled with flow injection and ICP-MS
	Huang, ZY ; Chen, FR ; Zhuang, ZX ; Wang, XR ; Lee, FSC
刊名	ANALYTICA CHIMICA ACTA
	2004-04-22
卷号	508 期号:2 页码:239-245
关键词	isotope dilution flow injection inductively coupled plasma mass spectrometry lead seawater
ISSN号	0003-2670
DOI	10.1016/j.aca.2003.11.033
英文摘要	Isotope dilution analysis method coupled with flow injection and inductively coupled plasma mass spectrometry (ID-FI-ICP-MS), enabled trace lead concentration in seawater to be determined and the high salt concentration in the matrix, such as Na+, Ca2+ and Mg2+, to be removed on-line. The operational parameters of the FI system including pH for the chelating reaction, concentration of 8-hydroxyquinoline-5-sulfonic acid (8-HQS), sample loading time and injection speed, washing time and speed, eluting acid concentration and eluting speed, and instrumental parameters for ICP-MS were optimized and selected. Accurate results could be achieved because the isotope ratios required can be precisely measured in the range of the eluting peak by means of ID-FI-ICP-MS. The 3sigma detection limit was 0.204 ng ml(-1). The trace lead concentration of seawater in south Xiamen, China was 0.988 +/- 0.039 ng ml(-1). The recoveries of spiked Pb standard in seawater and standard reference water (GBW 08607) were 97.9 and 101.0%, respectively, with a relative standard deviation of 0.98%. This method can be used to determine trace lead concentration in high salt matrix samples, and is especially useful when the eluting peaks do not have a Gaussian-distribution. (C) 2003 Elsevier B.V. All rights reserved.
WOS关键词	PLASMA-MASS-SPECTROMETRY ; SEA-WATER ; RATIOS ; PRECONCENTRATION ; SEPARATION ; ZIRCONIUM ; ELEMENTS ; HAFNIUM ; METALS
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000220311400016
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25161]
专题	自然资源部第一海洋研究所
通讯作者	Wang, XR
作者单位	1.SOA, Inst Oceanorg 1, Qingdao 266061, Peoples R China 2.Jimei Univ, Coll Bioengn, Xiamen 361021, Peoples R China 3.Xiamen Univ, Key Lab Analyt Sci, Minist Educ, Xiamen 361005, Peoples R China
推荐引用方式 GB/T 7714	Huang, ZY,Chen, FR,Zhuang, ZX,et al. Trace lead measurement and on-line removal of matrix interference in seawater by isotope dilution coupled with flow injection and ICP-MS[J]. ANALYTICA CHIMICA ACTA,2004,508(2):239-245.
APA	Huang, ZY,Chen, FR,Zhuang, ZX,Wang, XR,&Lee, FSC.(2004).Trace lead measurement and on-line removal of matrix interference in seawater by isotope dilution coupled with flow injection and ICP-MS.ANALYTICA CHIMICA ACTA,508(2),239-245.
MLA	Huang, ZY,et al."Trace lead measurement and on-line removal of matrix interference in seawater by isotope dilution coupled with flow injection and ICP-MS".ANALYTICA CHIMICA ACTA 508.2(2004):239-245.