Extraction-spectrophotometric determination of gold(III) with 2-hydroxy-1-naphthaldehyde-4-phenyl-3-thiosemicarbazone.
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منابع مشابه
Spectrophotometric determination of nickel(II) with 2-hydroxy-3-methoxy- benzaldehyde thiosemicarbazone
2-Hydroxy-3-methoxy benzaldehyde thiosemicarbazone has been synthesized, characterized and its analytical application investigated. It reacts with nickel(II) in aqueous solution at pH 4.0-8.0 and at room temperature to form a yellow coloured ML (1:1) complex with absorption maximum at 410 nm and molar absorptivity 2.05×10 l mol cm. Beer’s law is obeyed in the range of 0.058-2.347 μg ml of Ni(II...
متن کاملSpectrophotometric determination of tungsten ( VI ) after extraction of its 6 - chloro - 3 - hydroxy - 2 - phenyl - 4 - oxo - 4 H - 1 - benzopyran complex into chloroform
6-chloro-3-hydroxy-2-phenyl-4-oxo-4H-1-benzopyran CHPB) has been used for the first time as an analytical reagent for the spectrophotometric determination of tungsten. The yellow colored W (VI) – CHPB complex has λmax at 420 nm, is extractable into chloroform from 0.04 – 0.32 M HCl medium containing 0.6 – 1.6 mL of 0.1% CHPB (in acetone). Tungsten (VI) in presence of several cations, anions and...
متن کامل2-hydroxy-1-naphthaldehyde 2-methylthiosemicarbazone.
Ligands of the aroylhydrazone class have shown much promise as potential chelators for treatment of iron overload disease and perhaps cancer (Johnson et al., 1982; Baker et al., 1992; Richardson et al., 1995; Richardson & Milnes, 1997). Our previous investigations have demonstrated that 2-hydroxy-1naphthaldehyde isonicotinoyl hydrazone, (II), and several other aroylhydrazone chelators possess a...
متن کاملSynthesis and Antimicrobial Activity of Some 2-[(4-Substituted-Phenyl-3-Chloro-Azetidin-2-One)-5-(2'-Methylamino-4-Phenyl-1', 3'-Thiazolyl-]-1, 3,4-Thiadiazoles
A new 2-[(4-substituted-phenyl-3-chloroazetidin-2-one)-5-(2'-methylamino 4-phenyl-1', 3'-thiazolyl-]-1, 3, 4-thiadiazoles, 5(a-n) were synthesized from 2-substituted-benzylideneamino-5-[2'-methylamino-4'-phenyl-1',3'-thiazolyl]-1,3, 4-thiadiazole, 4(a-n) using 2-amino-4phenyl-1, 3-thiazole as a starting material. The synthesised compounds have been screened in vitro for their antimicrobial acti...
متن کاملSpectrophotometric Determination of 4-Hydroxy-2-mercapto-6-methylpyrimidine Based on Aggregation of Colloidal Gold Nanoparticles
We report herein the development of a highly sensitive colorimetric method for the detection of 4-hydroxy-2-mercapto-6-methylpyrimidine (MTU) which acts as an anti-thyroid drug utilizing citrate capped gold nanoparticles (Au-NPs). This thiol-containing molecule exhibits intriguing affinity with Au-NPs. The reactivity involves the displacement of the citrate shell by the thiolate shell followed ...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1985
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.34.4_193