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Simultaneous determination of copper and iron by solvent extraction and first derivative spectrophotometry
(1995)
A simple, sensitive and selective first derivative spectrophotometric method has been developed for the determination of copper and iron in mixtures. The method is based on the recovery of the analytes, by liquid-liquid ...
Simultaneous determination of o- and p-nitrophenol by first derivative spectrophotometry
(Kluwer Academic Publishers, 1999)
A simple method by first derivative spectrophotometry is proposed for the simultaneous determination of o-nitrophenol and p-nitrophenol. The analytes were separated from samples by liquid-liquid extraction (pH = 7.4) as ...
Simple, direct and simultaneous stripping voltammetric determination of lead and copper in gasoline using an in situ mercury film electrode
(2014-01-01)
An improved procedure is presented to determine Pb(II) and Cu(II) in gasoline using a mercury film electrode generated in situ. The method is based on the reduction of the metal ions at adequate potentials on the glassy ...
Simple, Direct and Simultaneous Stripping Voltammetric Determination of Lead and Copper in Gasoline Using an In Situ Mercury Film Electrode
(Bentham Science Publ Ltd, 2014-01-01)
An improved procedure is presented to determine Pb(II) and Cu(II) in gasoline using a mercury film electrode generated in situ. The method is based on the reduction of the metal ions at adequate potentials on the glassy ...
Simultaneous determination of chlordiazepoxide and clidinium bromide in pharmaceutical formulations by derivative spectrophotometry
(1999)
A direct and simple first derivative spectrophotometric method has been developed for the simultaneous determination of clidinium bromide and chlordiazepoxide in pharmaceutical formulations. Acetonitrile was used as solvent ...
Simultaneous determination of iron and copper by third-derivative solid-phase spectrophotometry
(MARCEL DEKKER INC, 2002)
A simultaneous microdetermination of iron and copper at sub-mug/L level by solid phase derivative spectrophotometry has been developed. The compounds TPTZ (2,4,6-tripyridyl-,3,5-triazine) and Neocuproine (2,9-dimethyl-1, ...
Simultaneous determination of ascorbic acid and acetylsalicylic acid in pharmaceutical formulations
(AOAC INTERNATIONAL, 2001-02)
A direct, simple, and practical first-derivative spectrophotometric method is described for simultaneous determination of ascorbic acid and acetylsalicylic acid. The effects of the solvent, excipients, and spectral variables ...
Simultaneous determination of platinum and palladium by second derivative spectrophotometry using 3-(2'-thiazolylazo)-2,6-diaminopyridine as chromophore ligand
(Marcel Dekker Inc., 2000)
A second derivative spectrophotometric method has been developed for the determination of palladium and platinum in mixtures. The method is based on the formation of the platinum and palladium complexes with 3-(2- ...
Simultaneous and Direct Determination of As, Bi, Pb, Sb, and Se and Co, Cr, Cu, Fe, and Mn in Milk by Electrothermal Atomic Absorption Spectrometry
(Springer, 2012-08-01)
Tungsten permanent modifier with coinjection of Pd(NO3)(2) and W-Ru permanent modifiers are proposed for the direct and simultaneous determination of As, Bi, Pb, Sb, and Se (group 1) and Co, Cr, Cu, Fe, and Mn (group 2), ...