Extraction-spectrophotometric determination of traces of palladium by reaction between zinc(II) dibenzyldithiocarbamate and palladium(II)/2-(5-bromo-2-pyridylazo)-5-diethylaminophenol

Ion-Pair High-Performance Liquid Chromatographic Retention Behavior of Copper(II)–1-Oxa-4,7,10,13- tetraazacyclopentadecane Complex

“…A variety of methods have been reported for the spectrophotometric determination of Cu(II) ion in a serum (2), pure aluminum (3), alloys (4), pharmaceutical formulations (5,6), etc., using various chromogenic reagents. Although these methods provide high sensitivity, most of them are based on solvent extraction and have low selectivity.…”

Spectrophotometric and derivative spectrophotometric determination of palladium(II) using pyridopyridazine dithione in the presence of non-ionic surfactant

“…Numerous spectrophotometric methods are available for the determination of palladium [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], but most have low sensitivity [2][3][4][5][6][7], are nonselective [6][7][8][9] and are based on solvent extraction [10][11][12][13][14][15][16][17]. Moreover, the determination of palladium in the presence of noble metals without preliminary extraction or use of masking agent is difficult, because the spectra of the * To whom correspondence should be addressed respective complexes with the chromogenic reagent tend to overlap [14][15][16][17].…”

Selective Extraction–Spectrophotometric Determination of Traces of Palladium in Catalysts

“…Various methods have been reported for the extraction of palladium from different media (5)(6)(7)(8)(9)(10)(11)(12). However, the existing methods suffer from limitations such as insufficient selectivity, narrow pH, long extraction period, solvent dependence, high reagent blank, and temperature control.…”