Determination of the Acid-Base Dissociation Constant of Acid-Degradable Hexamethylenetetramine by Capillary Zone Electrophoresis
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چکیده
منابع مشابه
Determination of acid dissociation constant of degradable tetrabromophenolphthalein ethyl ester by capillary zone electrophoresis.
An acid dissociation constant of tetrabromophenolphthalein ethyl ester (TBPE) was determined through the measurement of electrophoretic mobility by capillary zone electrophoresis (CZE). Although TBPE is degradable in acidic pH region and it gradually degraded at pH conditions around and below its pKa values in the time scale of the CZE measurement, equilibrium species of interest were detected ...
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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...
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Clavulanic acid enhances the antibacterial spectrum of amoxicillin by rendering most β-lactamase producing isolates susceptible to the drug. A fast, simple and efficient capillary electrophoresis method was developed for the simultaneous determination of amoxicillin and clavulanic acid from complex mixtures. Using a 25 mM sodium tetraborate as background electrolyte at a pH of 9.30, + 25 kV app...
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In this paper, capillary zone electrophoresis method was used for the determination of vitamin C and nicotinic acid content in black bean. 20 mmol/L borax solution and 20% acetonitrile concentration, 20kV voltage, 254 nm UV detection wavelength was chosen for electrophoretic analysis. Measured vitamin C and nicotinic acid content in black bean were 0.333 mg/g (RSD = 3.9%) (n = 5), 0.482 mg/g (R...
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In an undergraduate bioanalytical instrumental lab, students use capillary electrophoresis to quantify L-ascorbic acid (vitamin C) in food samples. The students are tasked to prepare standards, to obtain the calibration curves, and to determine the quantity of L-ascorbic acid in tomato samples (Lycopersicon fruit). A discussion about the function of each component of a capillary electrophoresis...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2016
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.32.1327