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Abstract. The preparation and characteristics of a new water-soluble reagent, N-phenyl-N-(sodium p-aminobenzenesulfonate)thiourea (PPT) are described. In the presence of cetyltrimethylammonium bromide (CTMAB) PPT reacts with Au(III), Pd(II), and Pt(IV) to form colored complexes with absorption maxima at 317nm, 306.1nm, 778.4nm, respectively. Optimum conditions for color development were studied. The...
. The preparation and characteristics of a new water-soluble reagent, N-phenyl-N′-(sodium p-aminobenzenesulfonate)thiourea (PPT) are described. In the presence of cetyltrimethylammonium bromide (CTMAB) PPT reacts with Au(III), Pd(II), and Pt(IV) to form colored complexes with absorption maxima at 317 nm, 306.1 nm, 778.4 nm, respectively. Optimum conditions for color development were studied. The...
The new reagent N-(m-Methylphenyl)-N'-(sodium p-aminobenzenesulfonate)-thiourea (MMPT) was synthesized and its structure was confirmed by elemental analysis, IR, UV and 1 HNMR spectra. The apparent molar absorptivities of usual ions were determined and the chromogenic reaction with microamounts of platinum(IV) was studied in detail. In the medium of an HAc-NaAc buffer solution, MMPT can react...
The synthesis of the new long-chain saturated fatty hydrocarbon substituting group compound, N-undecyl-N'-(sodium p-aminobenzenesulfonate)-thiourea (UPT) is described. According to the studies on its analytical performance, it is found that this reagent can be used to identify Cu 2+ (PD 6.3) and determine microamounts of copper (ε 300.4nm =2...
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