| 毛细管电泳-非接触式电导法直接测定偏硅酸 |
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| 引用本文： | 李二庭,杨丽蓉,黄文惠,王鑫,谢天尧.毛细管电泳-非接触式电导法直接测定偏硅酸[J].分析化学,2011,39(4):568-571. |
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| 作者姓名： | 李二庭 杨丽蓉 黄文惠 王鑫 谢天尧 |
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| 作者单位： | 中山大学化学与化学工程学院;中山大学环境科学与工程学院; |
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| 基金项目： | 国家基金委人才培养基金(No.J0730420); 中山大学化学学院开放实验室基金资助项目 |
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| 摘 要： | 采用毛细管电泳-电容耦合非接触式电导检测(CE-C<'4>D),以2.4mmol/L KOH+1.6mmol/L K<,2>HPO<,4>+0.4 mmol/L 十六烷基溴化铵(CTMAB)为电泳运行液,融硅石英毛细管(45cm×50μm,有效长度40 cm),负高压分离(-15 kV),偏硅酸可在6.0 min内实现...
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| 关 键 词： | 偏硅酸 毛细管电泳 非接触式电导 有色基体 饮用矿泉水 |
Determination of Silicate by Capillary Electrophoresis with Contactless Conductivity Detection |
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| LI Er-Ting,YANG Li-Rong,HUANG Wen-Hui,WANG Xin,XIE Tian-Yao.Determination of Silicate by Capillary Electrophoresis with Contactless Conductivity Detection[J].Chinese Journal of Analytical Chemistry,2011,39(4):568-571. |
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| Authors: | LI Er-Ting YANG Li-Rong HUANG Wen-Hui WANG Xin XIE Tian-Yao |
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| Institution: | LI Er-Ting1,YANG Li-Rong1,HUANG Wen-Hui1,WANG Xin2,XIE Tian-Yao1(1School of Chemistry and Chemical Engineering,2School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou 510275) |
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| Abstract: | A new method for the rapid separation and sensitive determination of silicate in drinking natural mineral water by capillary electrophoresis with capacitively coupled contactless conductivity detection(CE-C4D) was developed.The analyte could be separated well within 6 min in a fused-silica capillary under the optimum conditions: 2.4 mmol/L KOH+1.6 mmol/L K2HPO4+0.4 mmol/L CTMAB as the running buffer,CTMAB as the electroosmotic flow modificator,negative polarity separation voltage,-15 kV.The linear response ... |
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| Keywords: | Silicate Capillary electrophoresis Contactless conductivity detection Coloured matrix Drinking natural mineral water |
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