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Paper chromatography in the separation of ions : Separation of precious metals
Abstract A study of the separation of the precious metals. Pd +2 , Pt +4 , Ir +4 , Rh +3 , Ru +3 , Os +4 and Au +3 , by ascending paper chromatography, using different solvents and a number ofExpand
Spectrophotometric determination of palladium: A comparative study of 2-mercaptobenzothiazole and 2-mercaptobenzimidazole as analytical reagents
As spectrophotometric reagents for palladium 2-mereaptobenzothiazole and 2-mereaptobenzothiazole behave more or less in the same way. Colour system formed by them at a pH region of 3.0 to 6.5 obeyExpand
2-Mercapto-benzimidazole as an analytical reagent
SummaryPalladium is quantitatively precipitated at aPH 5.0 to 10.1 by 2-mercapto-benzimidazole and the complex, Pd(C7H5N2S)2, which is found to be diamagnetic, is stable up to a temperature of 447‡Expand
Spectrophotometric determination of selenium with 2-mercaptobenzothiazole
A rapid, sensitive and selective spectrophotometric method has been developed for the determination of micro amounts of selenium. This method is based on the absorptiometric measurement of the stableExpand
Amperometric estimation of palladium
Abstract In sodium acetate acid buffer the diffusion currents of palladium and of the reagents bismuthiol 1, bissmuthiol II, 2-mereaptobenzothiazole and 2-mereaptobenzimidazole remain ConstantExpand
Spectrophotometric determination of osmium with 2-mercaptobenzothiazole
Abstract A new spectrophotometric method for osmium is described which is based on the extraction of the blue precipitate formed by the reaction with 2-Mercaptobenzothiazole at pH ~ 4, andExpand
Circular-paper chromatography in the separation of ions
Abstract A. circular-paper Chromatographie method for separating the precious metals Pd +2 , Pt +4 , l r+4 . Rh +3 , Ru +3 , Os +4 and Au +3 , using several solvent mixtures with or withoutExpand
Bismuthiol II as an analytical reagent
SummaryThe estimation of bismuth by the reagent Bismuthiol II is studied critically. The effect of acidity, reagent concentration and interfering ions are given in detail. The maximum acidity thatExpand
Amperometric titration of mercury with a stationary platinum electrode in stirred solutions.
Amperometric titration of mercury (in the range of 0-4 to 3.5 mg) has been carried out with 2-mercaptobenzoxazole with a stationary electrode in stirred solution in a sodium acetate-acetic acidExpand