Results 71 to 80 of about 107 (101)
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The Chemical Engineering Journal and the Biochemical Engineering Journal, 1995
Abstract The kinetics of penicillin G extraction by Amberlite LA-2 dissolved in kerosene in a constant-interface-area cell was studied. The effects of agitation speed, interfacial area between two immiscible solutions, pH of aqueous phase, initial carrier concentration and initial penicillin G concentration on the initial flux of penicillin G were ...
Shih Sheng Wang, Chau Jen Lee
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Abstract The kinetics of penicillin G extraction by Amberlite LA-2 dissolved in kerosene in a constant-interface-area cell was studied. The effects of agitation speed, interfacial area between two immiscible solutions, pH of aqueous phase, initial carrier concentration and initial penicillin G concentration on the initial flux of penicillin G were ...
Shih Sheng Wang, Chau Jen Lee
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Journal of Chemical Technology & Biotechnology, 1995
AbstractThe concentration of reactants at an interface cannot be determined directly. The concentration at the interface has been estimated by measuring the interfacial tension at the interface between two immiscible solutions. An aqueous phase, de‐ionised water containing penicillin G, and an organic phase containing amberlite LA‐2 were used as a ...
Chau Jen Lee, Shih Sheng Wang
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AbstractThe concentration of reactants at an interface cannot be determined directly. The concentration at the interface has been estimated by measuring the interfacial tension at the interface between two immiscible solutions. An aqueous phase, de‐ionised water containing penicillin G, and an organic phase containing amberlite LA‐2 were used as a ...
Chau Jen Lee, Shih Sheng Wang
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Journal of Chemical & Engineering Data, 2014
Benzyl penicillin, known as penicillin G (PG), is a β-lactam antibiotic and also a weak monocarboxylic acid. The penicillin G extraction from aqueous solution by Amberlite LA-2 in different diluents, that is, octan-1-ol, nonan-1-ol, 3-methyl-1-butanol, ethyl ethanoate, propyl ethanoate, 4-methylpentan-2-one, octan-2-one, octane, and decane has been ...
Uslu, Hasan +3 more
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Benzyl penicillin, known as penicillin G (PG), is a β-lactam antibiotic and also a weak monocarboxylic acid. The penicillin G extraction from aqueous solution by Amberlite LA-2 in different diluents, that is, octan-1-ol, nonan-1-ol, 3-methyl-1-butanol, ethyl ethanoate, propyl ethanoate, 4-methylpentan-2-one, octan-2-one, octane, and decane has been ...
Uslu, Hasan +3 more
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Journal of Radioanalytical and Nuclear Chemistry, 2002
Solvent extraction on Zr(IV) were carried out at 5, 25 and 40 °C using Amberlite LA-2, TBP and HDEHP in toluene or kerosene from solutions of HCl, HBr or KI. The equilibrium constant Kex as well as the thermodynamic functions DG°, DH° and DS° of the nine extraction systems were deduced.
A. A. Abdel-Fattah +2 more
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Solvent extraction on Zr(IV) were carried out at 5, 25 and 40 °C using Amberlite LA-2, TBP and HDEHP in toluene or kerosene from solutions of HCl, HBr or KI. The equilibrium constant Kex as well as the thermodynamic functions DG°, DH° and DS° of the nine extraction systems were deduced.
A. A. Abdel-Fattah +2 more
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Separation Science and Technology, 2013
The zinc plant purification cake (CINKUR Co., Turkey) was leached with hydrochloric acid. The extraction and concentration of cadmium from this acidic leach solution by an emulsion liquid membrane (ELM) using secondary amine (Amberlite LA-2) as extractant has been studied. The effect of the fundamental parameters influencing the extraction process, for
Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü +1 more
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The zinc plant purification cake (CINKUR Co., Turkey) was leached with hydrochloric acid. The extraction and concentration of cadmium from this acidic leach solution by an emulsion liquid membrane (ELM) using secondary amine (Amberlite LA-2) as extractant has been studied. The effect of the fundamental parameters influencing the extraction process, for
Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü +1 more
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Analytica Chimica Acta, 2003
Abstract A simple, integrated method for the speciation of chromium in wastewater and sewage sludge was developed, utilising liquid anion exchange by Amberlite LA-2 (LAES) and final determination by electrothermal atomic absorption spectrometry (ETAAS).
Athanasios S Stasinakis +2 more
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Abstract A simple, integrated method for the speciation of chromium in wastewater and sewage sludge was developed, utilising liquid anion exchange by Amberlite LA-2 (LAES) and final determination by electrothermal atomic absorption spectrometry (ETAAS).
Athanasios S Stasinakis +2 more
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Journal of Chemical & Engineering Data, 2017
The present study is on the reactive extraction of picric acid (HPc, 2,4,6-trinitrophenol) from dilute aqueous solutions by organic phases containing Amberlite LA-2 (ALA-2) as extractant dissolved in four types of ketones. The studies were performed at 298, 308, and 318 K, and the results were used to calculate the values of distribution coefficient ...
Hasan Uslu, Mustafa Esen Marti
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The present study is on the reactive extraction of picric acid (HPc, 2,4,6-trinitrophenol) from dilute aqueous solutions by organic phases containing Amberlite LA-2 (ALA-2) as extractant dissolved in four types of ketones. The studies were performed at 298, 308, and 318 K, and the results were used to calculate the values of distribution coefficient ...
Hasan Uslu, Mustafa Esen Marti
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Talanta, 1983
The system Hg(II)/Xylenol Orange/Amberlite LA-2 dissolved in 1:1 v v 3-methylbutan-1-ol/chloroform medium has been studied. A 3:2:2 complex is formed, which is suitable for analytical measurements at temperatures
J L, Peral-Fernández +3 more
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The system Hg(II)/Xylenol Orange/Amberlite LA-2 dissolved in 1:1 v v 3-methylbutan-1-ol/chloroform medium has been studied. A 3:2:2 complex is formed, which is suitable for analytical measurements at temperatures
J L, Peral-Fernández +3 more
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International Science and Technology Journal
This study presents a simple and effective method for extracting carmine dye from its aqueous solutions using Amberlite LA-2 liquid extractant. The effect of several operating factors on extraction efficiency was studied, such as Amberlite concentration (0.011, 0.022, 0.044, 0.088, 0.132), initial dye concentration (20, 40, 60, 80, 100, 140), contact ...
Abdulrahman Dnkm +3 more
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This study presents a simple and effective method for extracting carmine dye from its aqueous solutions using Amberlite LA-2 liquid extractant. The effect of several operating factors on extraction efficiency was studied, such as Amberlite concentration (0.011, 0.022, 0.044, 0.088, 0.132), initial dye concentration (20, 40, 60, 80, 100, 140), contact ...
Abdulrahman Dnkm +3 more
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Separation of metal halide pairs using Amberlite LA-2 and tri-n-butyl phosphate
Journal of Radioanalytical Chemistry, 1980A. El-Kot, A. Ghoneim, A. Alian
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