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学科主题: 分析化学
题名: Determination of mercury ion by MEKC with on-column derivatisation and LIF detection
其他题名: Determination of mercury ion by MEKC with on-column derivatisation and LIF detection
作者: MA LING ; Kang JW(康经武)
通讯作者: 康经武
刊名: J. Sep. Sci.
发表日期: 2008
卷: 31, 期:5, 页:888-892
收录类别: SCI
部门归属: 上海有机所
英文摘要: A simple and automatic method for the determination of mercury ion by MEKC with on-column derivatisation and LIF detection is described in the present paper. In this method, solutions of a nonfluorescent rhodamine derivative and mercury ion were injected individually and mixed by applying a short voltage. Subsequently, the mercury ions reacted with the nonfluorescent rhodamine derivative to produce strongly fluorescent product. The resulting product was then removed by EOF and micelles towards the detection window and detected by LIF detector. The experimental conditions in terms of the concentration and injection volume ratios between mercury ion and derivatisation reagent, the mixing time and waiting time for the on-column reaction were optimised. The optimal conditions were determined as follows: the concentration and injection volume ratios between mercury ion and derivatisation reagent were 1:20 and 10:1, respectively; the mixing time was 40 s under the applied voltage of 5 IN; the waiting time was proved unnecessary. The detection limit for mercury ion was 5 X10(-8) M, and the total analysis time was less than 10 min.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000254806000015
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/27723
Appears in Collections:上海有机化学研究所_期刊论文

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Recommended Citation:
MA LING,Kang JW. Determination of mercury ion by MEKC with on-column derivatisation and LIF detection[J]. J. Sep. Sci.,2008,31(5):888-892.
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