Determination of trace Zn2+ by capillary electrophoresis with field-amplified sample injection and high voltage contactless conductivity detection

	Determination of trace Zn2+ by capillary electrophoresis with field-amplified sample injection and high voltage contactless conductivity detection
	Tan, F; Yang, BC; Guan, YF
刊名	chemical journal of chinese universities-chinese
	2005-05-10
卷号	26 期号:5 页码:825-828
关键词	capillary electrophoresis field-amplified sample injection contactless conductivity detection zinc ion
英文摘要	analysis of trace zn2+ by capillary electrophoresis with field-amplified sample stacking(fass) and high voltage capacitively coupled contactless conductivity detection(c4d) was presented. 2-(n-morpholino) ethanesulfonic acid(mes)/histidine (his) was used as the separation electrolyte. the effects of mes/his concentration in the sample matrix, and the injection time on the effective stacking efficiency, and the concentration of the separation electrolyte on the sensitivity were studied. zn2+ was dissolved in deionized water and separated in 10 mmol/l mes/his (ph = 4.9) buffer. the c4d using fass yielded sensitivity enhancement with respect to non-stacking injection mode in excess of three orders of magnitude (1.3 x 10(3)) and a limit of detection (lod) 5 nmol/l to zn2+. there was a linear relationship between the response of peak area and concentration of zn2+ in the range from 10 to 1 000 nmol/l(r=0.9995). the method can be used for determination of zn2+ of trace level.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	stacking
收录类别	SCI
语种	英语
WOS记录号	WOS:000229296100009
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139696]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dept Analyt Chem & Microinstrumentat, Dalian 116012, Peoples R China
推荐引用方式 GB/T 7714	Tan, F,Yang, BC,Guan, YF. Determination of trace Zn2+ by capillary electrophoresis with field-amplified sample injection and high voltage contactless conductivity detection[J]. chemical journal of chinese universities-chinese,2005,26(5):825-828.
APA	Tan, F,Yang, BC,&Guan, YF.(2005).Determination of trace Zn2+ by capillary electrophoresis with field-amplified sample injection and high voltage contactless conductivity detection.chemical journal of chinese universities-chinese,26(5),825-828.
MLA	Tan, F,et al."Determination of trace Zn2+ by capillary electrophoresis with field-amplified sample injection and high voltage contactless conductivity detection".chemical journal of chinese universities-chinese 26.5(2005):825-828.