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题名: Interface of chip-based capillary electrophoresis-inductively coupled plasma-atomic emission spectrometry (CE-ICP-AES)
作者: Hui, AYN;  Wang, G;  Lin, BC;  Chan, WT
通讯作者: Wing-Tat Chan
刊名: JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
发表日期: 2006-02-01
DOI: 10.1039/b509080f
卷: 21, 期:2, 页:134-140
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1807
产权排名: 2;2
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Spectroscopy
研究领域[WOS]: Chemistry ;  Spectroscopy
英文摘要: An interface of chip-based capillary electrophoresis (CE)-inductively coupled plasma-atomic emission spectrometry (ICP-AES) that is based on cross-flow nebulization has been developed. A polydimethylsiloxane (PDMS) CE-chip with conventional cross channel layout was used. A stainless steel tube was placed orthogonal to the exit of the CE separation channel for cross flow nebulization. A supplementary flow of buffer solution at the channel exit was used to improve nebulization efficiency. Two capillaries were inserted into the CE chip near the inlet of the separation channel for sample and buffer solution injection. Syringe pumps were used to manipulate the flow rate and flow direction of the sample, buffer, and supplementary buffer solution. Peak broadening due to the shape (bulb and tube-shaped) and size of the spray chambers was studied. The smaller tube-shaped spray chamber was used because of smaller peak broadening effect due to aerosol transport. The nebulization and transport efficiency of the CE-ICP interface was approximately 10%. Ba2+ and Mg2+ ions were eluted from the CE-chip within 30 s. Resolution of the Ba2+ and Mg2+ peaks was 0.7 using the chip-based CE-ICP-AES system.
关键词[WOS]: RAPID ELEMENTAL SPECIATION ;  MASS-SPECTROMETRY ;  METALLOTHIONEIN ISOFORMS ;  ZONE-ELECTROPHORESIS ;  SELENIUM SPECIATION ;  NEBULIZATION ;  ULTRAVIOLET ;  SEPARATION ;  EFFICIENCY ;  MICROCHIP
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000235453200017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93533
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian, Peoples R China

Recommended Citation:
Hui, AYN,Wang, G,Lin, BC,et al. Interface of chip-based capillary electrophoresis-inductively coupled plasma-atomic emission spectrometry (CE-ICP-AES)[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2006,21(2):134-140.
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