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Separation of chiral drugs with sulfobutylether-β-cyclodextrin bycapillary zone electrophoresis

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Chinese Chemical Letters 1999年第1期10卷 39-42页

作者： Jun Ying LIU Yi Yang DONG Tian Song WANG Hu Wei LIU Al Jin HUANG yi Liang SUNI Zeng Pei SUN(Department of Chemistry． Peking University． Beijing 100871)(Natlonal Institute for the Control of Pharmaceutical and Biological Products，Beijing 100050) Peking Univ Dept Chem Beijing 100871 Peoples R China Natl Inst Control Pharmaceut & Biol Prod Beijing 100050 Peoples R China

Sulfobutylether－β－cyclodextrin（SBE－β－CD）was used as a chiral selector tor separatingten chlral drugs with resolution 1．2 by capillary zone electrophoresls（CZE）， The backgroundelectrolylc solution comprised of 120 mmol／L Britton－Robinson buffer（BRB） containing1 ～10mmol／L SBE－β－CD with the pH value adjusted from 5．0－6．8． Five of the drugs were better resolvedthan those previously reported with neutral CDs．

关键词： Chiral separation sulfobutylether-β-cyclodextrin capillary zone electrophoresis anlsodamlne bencynonate econazole esmolol glycopynonate lobeline methoxamine phenylephrine plnacidll terazosin

场放大样品进样-压力辅助毛细管区带电泳测定饮用水中的百草枯

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分析化学 2012年第5期40卷 809-810页

作者：王明明沈菁宋婷李胜清陈浩华中农业大学理学院湖北省农业科学院农业质量标准与检测技术研究所

1引言百草枯属有机杂环类季铵盐除草剂,由于它具有优良的除草效果,已广泛应用于多种作物的杂草防治。百草枯具有极强的水溶性,极易迁移至水体环境中,从而对饮用水的质量安全构成潜在威胁。目前,百草枯的残留检测方法主要有分光光度法[1... 详细信息

1引言百草枯属有机杂环类季铵盐除草剂,由于它具有优良的除草效果,已广泛应用于多种作物的杂草防治。百草枯具有极强的水溶性,极易迁移至水体环境中,从而对饮用水的质量安全构成潜在威胁。目前,百草枯的残留检测方法主要有分光光度法[1]、液相色谱质谱联用法[2]、气相色谱质谱联用法[3]和毛细管电泳法(CE)[4～6]。采用分光光度法测定百草

关键词： Field-amplified sample injection capillary zone electrophoresis Paraquat Drinking water

capillary Electrophoretic Determination of Jinggangmycin A in Formulations Using Direct UV Detection

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Chinese Chemical Letters 2005年第11期16卷 1511-1514页

作者： Jin HE Xin LIU Yi Shi LIU Zi Niu YU National Key Laboratory of Agricultural Microbiology Huazhong Agricultural University Wuhan 430070

A simple, fast and reliable method was developed for the analysis of jinggangmycin A （validamycin A） in commercial formulations. The running buffer used was acetate buffer （100 mmol/L, pH 4.7） with 15 kV as the applied voltage. The detection was achieved by using direct UV mode at 200 nm and the detection limit was 0.2 μg/mL. Linearity in the concentration range of 5-500 μg/mL was excellent （RE 〉 0.999）. The run-to-run repeatability （n = 3）, as expressed by the relative standard deviation （RSD） for migration times and peak areas were less than 0.5% and 3.0% respectively. The mean recovery ranged from 97.2% to 101.4%.

关键词： Jinggangmycin A validamycin A capillary zone electrophoresis direct UV detection.

Detection　of　Catecholic　Compounds　with　Field-ampilfied　CZE-Amperometry

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Chemical Research in Chinese Universities 1997年第3期13卷 221-228页

作者： HU Shen, PANG Dai-wen , HU Yong-gang , CHENG Jie-ke (Department of Chemistry, Wuhan University, Wuhan, 430072 )

On-column sample stacking technique has been used extensively in capillary zone electrophoresis (CZE) to enhance the sensitivity of the measurements with UV-Vis detection. However, the detection limits for CZE-separation are still limit- ed due to the poor sensitivity of a UV-Vis detector. We incorporated field-amplified sample stacking technique into CZE with amperometric detection. Compared with the conventional electromigration injection , a negative peak of water was observed and a great enhancement of signals was obtained. The results in phosphate buffer with sodium dodecyl sulfate (SDS ) and 2-N-(morpholino) ethane sulphonic acid ( MES ) buffer were compared. Subnanomolar concentration limits for cate- cholamine neurotransmitters (dopamine, norepinephrine , epinephriine) and isopro- terenol were achieved in the 25 um capillary with two or three orders of magnitude lower than those with amperometric detection reported previously.

关键词： capillary zone electrophoresis Amperometric detection Stacking

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毛细管区带电泳的进展

分析测试通报 1988年第2期 1-5页

作者：竺安中国科学院化学研究所北京

毛细管区带电泳和电动色谱于1979年出现,1981年有了突破性进展。现在使用一米长的毛细管,已可获得50万至100万理论板的效率。对于多种有机物和生化物质,都能进行高效分离,蛋白质的电泳已取得很好的效果。1987年以来又有蓬勃的发展。但... 详细信息

毛细管区带电泳和电动色谱于1979年出现,1981年有了突破性进展。现在使用一米长的毛细管,已可获得50万至100万理论板的效率。对于多种有机物和生化物质,都能进行高效分离,蛋白质的电泳已取得很好的效果。1987年以来又有蓬勃的发展。但在理论,仪器和应

关键词： capillary zone electrophoresis high efficiency (performance) zone electrophoresis

Study on capillary zone Electrophoretic Separation of Chlorpheniramine Enantiomers with β-Cyclodextrin

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Journal of Beijing Institute of Technology 1997年第1期6卷 52-58页

作者：李方靳慧顾峻岭傅若农北京理工大学化工与材料学院北京100081

The chlorpheniramine enantiomers were separated with capillary zone electrophoresis using β-cyclodextrin as the chiral *** effects of the concentration of β-cyclodextrin, the electrolyte pH and organic modifier(urea... 详细信息

关键词： capillary zone electrophoresis enantioseparation enantiomers cydodextrin