【摘 要】
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In this study, on-line concentration-capillary electrophoresis was used to determine catecholamines.Different methods were employed namely, CE-UV and CE-LIF
【机 构】
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Department of Chemistry, Chung Yuan Christian University (CYCU), 200 Chung Pei Road, Chung-Li 320, T
【出 处】
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第2届大连国际色谱学术报告会、第37届国际高效液相色谱及相关技术会议、第18届全国色谱学术报告会
论文部分内容阅读
In this study, on-line concentration-capillary electrophoresis was used to determine catecholamines.Different methods were employed namely, CE-UV and CE-LIF combined with cation-selective exhaustive injection and sweeping (CSEI-sweeping) and field-amplified sample stacking (FASS), respectively.In the CE-UV coupled with CSEI-sweeping method, separation conditions such as micelle and buffer concentrations and, on-line concentration conditions such as sample matrix and acid plug concentrations, water and acid plug length were optimized to find the suitable conditions for catecholamines determination.In the fluorescence detection of catecholamines, derivatization conditions such as derivatizing agent concentration, reaction time, buffer and pH value were optimized to find the best conditions prior to analysis.The above-mentioned two methods were used to test real samples such as biological samples.
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