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Determination of heavy metal ions by capillary electrophoresis with contactless conductivity detection after field-amplified sample injection
Tan, F; Yang, BC; Guan, YF; Guan YF(关亚风); Guan YF(关亚风)
Source PublicationANALYTICAL SCIENCES
2005-08-01
Volume21Issue:8Pages:955-958
Indexed BySCI
SubtypeArticle
Department1
Funding Project105
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical
WOS Research AreaChemistry
WOS KeywordATOMIC EMISSION-SPECTROMETRY ; MASS-SPECTROMETRY ; STACKING ; CADMIUM ; LEAD ; SYSTEM ; COPPER ; CHROMATOGRAPHY ; CHROMIUM ; POLARITY
AbstractA method has been developed for determining of heavy metal ions by field-amplified sample injection capillary electrophoresis with contactless conductivity detection. The effects of the 2-N-morpholinoethanesulfonic acid/histidine (MES/His) concentration in the sample matrix, the injection time and organic additives on the enrichment factor were studied. The results showed that MES/His with a low concentration in the sample matrix, an increase of the injection time and the addition of acetonitrile improved the enrichment factor. Four heavy metal ions (Zn2+, Co2+, Cu2+ and Ni2+) were dissolved in deionized water, separated in a 10 mM MES/His running buffer at pH 4.9 and detected by contactless conductivity detection. The detection sensitivity was enhanced by about three orders of magnitude with respect to the non-stacking injection mode. The limits of detection were in the range from 5 nM (Zn2+) to 30 nM (Cu2+). The method has been used to determine heavy metal ions in tap water.
Language英语
URL查看原文
WOS IDWOS:000231180200012
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/93479
Collection中国科学院大连化学物理研究所
Corresponding AuthorGuan YF(关亚风); Guan YF(关亚风)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem & Microinstrumentat, Dalian 116012, Peoples R China
Recommended Citation
GB/T 7714
Tan, F,Yang, BC,Guan, YF,et al. Determination of heavy metal ions by capillary electrophoresis with contactless conductivity detection after field-amplified sample injection[J]. ANALYTICAL SCIENCES,2005,21(8):955-958.
APA Tan, F,Yang, BC,Guan, YF,关亚风,&关亚风.(2005).Determination of heavy metal ions by capillary electrophoresis with contactless conductivity detection after field-amplified sample injection.ANALYTICAL SCIENCES,21(8),955-958.
MLA Tan, F,et al."Determination of heavy metal ions by capillary electrophoresis with contactless conductivity detection after field-amplified sample injection".ANALYTICAL SCIENCES 21.8(2005):955-958.
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