Determination of imazalil by on-line coupled capillary isotachophoresis with capillary zone electrophoresis
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Determination of glycyrrhizin in liqueurs by on-line coupled capillary isotachophoresis with capillary zone electrophoresis.
An on-line coupled capillary isotachophoresis-capillary zone electrophoresis method for the determination of glycyrrhizin in liqueurs is described. The optimised electrolyte system was 5 mM HCl+11 mM epsilon-aminocaproic acid+0.05% hydroxyethylcellulose+30% methanol (leading electrolyte), 5 mM caproic acid+30% methanol (terminating electrolyte) and 20 mM caproic acid+10 mM histidine+0.1% hydrox...
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An on-line coupled capillary isotachophoresis-capillary zone electrophoresis (cITP-CZE) method for the determination of the fumaric acid content in apple juice is presented. A clear separation of fumaric acid in real samples is achieved within 20 min. The leading, terminating and background electrolyte of the employed system consist of 10 mM HCl+beta-alanine+5 mM beta-cyclodextrin+0.05% hydroxy...
متن کاملIsotachophoresis superimposed on capillary zone electrophoresis
Applying isotachophoresis (ITE’) superimposed on capillary zone electrophoresis (CZE), which will be denoted the ITPlCZE mode, components migrate in an ITP way on top of a background electrolyte. In such an ITPKZE system the leading electrolyte consists of a mixture of an ionic species L, with a high mobility (the leading ion of the ITP system), an ionic species L, with low mobility (the co-ion...
متن کاملDetermination of Varenicline by Capillary Zone Electrophoresis
HASSAN A ALHAZMI, HAFIZ A MAKEEN, SAMI EL DEEB Department of Pharmaceutical Chemistry, College of pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia. Department of Clinical Pharmacy, College of pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia. Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany Department of Pharmaceutical Chemistry, Al-Azhar Uni...
متن کاملDetermination of histamine by capillary zone electrophoresis with amperometric detection.
Capillary zone electrophoresis was employed for the determination of histamine using end-column amperometric detection with a carbon fiber microelectrode, at a constant potential. The optimum conditions of separation and detection were 10 mmol/L phosphate buffer, pH 5.6 for the buffer solution, 15 kV for the separation voltage, and 1.35 V (versus SCE) for the detection potential. The linear ran...
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ژورنال
عنوان ژورنال: Open Chemistry
سال: 2003
ISSN: 2391-5420
DOI: 10.2478/bf02479260