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	Provedor de dados BJPS (2) Autor Basavaiah,Kanakapura (2) Swamy,Nagaraju (2) Prashanth,Kudige Nagaraj (1) Palavra-chave Spectrophotometry/quantitative analysis (2) Albendazole/determination (1) Charge-transfer complexes (1) Diethylcarbamazine citrate/determination (1) Pharmaceutical formulations/analysis (1) Tablets/quantitative analysis (1) Titrimetry/quantitative analysis (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2015 (1) 2014 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Titrimetric and spectrophotometric assay of diethylcarbamazine citrate in formulations using iodate and iodide mixture as reagents BJPS Swamy,Nagaraju; Prashanth,Kudige Nagaraj; Basavaiah,Kanakapura. One titrimetric and two spectrophotometric methods are proposed for the determination of diethylcarbamazine citrate (DEC) in bulk drug and in formulations using potassium iodate and potassium iodide as reagent. The methods employ the well-known analytical reaction between iodate and iodide in the presence of acid. In titrimetry (method A), the drug was treated with a measured excess of thiosulfate in the presence of unmeasured excess of iodate-iodide mixture and after a standing time of 10 min, the surplus thiosulfate was determined by back titration with iodine towards starch end point. Titrimetric assay is based on a 1:3 reaction stoichiometry between DEC and iodine and the method is applicable over 2.0-10.0 mg range. The liberated iodine is measured... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diethylcarbamazine citrate/determination; Titrimetry/quantitative analysis; Spectrophotometry/quantitative analysis; Pharmaceutical formulations/analysis. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000100043 Simple and rapid spectrophotometric assay of albendazole in pharmaceuticals using iodine and picric acid as CT complexing agents BJPS Swamy,Nagaraju; Basavaiah,Kanakapura. Two simple, rapid and inexpensive spectrophotometric methods are described for the determination of albendazole (ALB) in bulk drug and in tablets. The methods are based on charge-transfer (CT) complexation reaction involving ALB as n-donor and iodine as σ-acceptor (method A) in dichloromethane or picric acid (PA) as π-acceptor (method B) in chloroform. The absorbance of CT complexes was measured at 380 nm for method A, and 415 nm for method B. The optimization of the experimental conditions is described. Under optimum conditions, Beer's law obeyed over the concentration ranges 8.0-240 and 2.4-42 μg mL-1 for method A and method B, respectively. The apparent molar absorptivity of CT complexes at the respective λmax are calculated to be 1.17×103 and 5.22×103... Tipo: Info:eu-repo/semantics/article Palavras-chave: Albendazole/determination; Spectrophotometry/quantitative analysis; Tablets/quantitative analysis; Charge-transfer complexes. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000400839 Registros recuperados: 2 Primeira ... 1 ... Última

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