2-Nitrobenzaldehyde Thiocarbohydrazone Assisted Precise Extraction Spectrophotometric Method for the Determination of Ruthenium(III) in Alloy and Catalysts
| Autor: | Anita A. Ghare, Pravin N. Kamble, Vishal J. Suryavanshi, Mansing A. Anuse, Ganesh S. Kamble, Arjun N. Kokare, Sunil B. Zanje |
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| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
Chemistry 010401 analytical chemistry 2-Nitrobenzaldehyde chemistry.chemical_element Molar absorptivity 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Ruthenium Absorbance chemistry.chemical_compound Reagent Chelation Stoichiometry Nuclear chemistry |
| Zdroj: | Journal of Analytical Chemistry. 73:438-451 |
| ISSN: | 1608-3199 1061-9348 |
| Popis: | A simple, rapid, selective, sensitive and reliable extractive spectrophotometric method was developed for the determination of ruthenium(III) using 2-nitrobenzaldehyde thiocarbohydrazone (2-NBATCH) as a chromogenic chelating ligand. The ruthenium(III)‒2-NBATCH complex is formed in aqueous acetic acid media (0.7 M) containing an organic solvent after 5 min heating on a water bath. The red colored complex is extracted into 1,2-dichloroethane and absorbance is measured at 445 nm against reagent blank. The Beer’s law is obeyed within 1‒6 g/mL of ruthenium(III), the optimum concentration range was 2‒5 g/mL of ruthenium(III) evaluated by Ringbom’s plot. Molar absorptivity and Sandell’s sensitivity of complex were 1.41 × 104 L/mol/cm and 0.0075 μg/cm2, respectively. The stoichiometry of complex was 1: 3 established from Job’s method of continuous variation, molar ratio method and logarithmic slope method. The proposed method was applied for determination of ruthenium(III) in binary and ternary, synthetic mixtures corresponding to fission product elements alloy and ruthenium(III) catalysts. |
| Databáze: | OpenAIRE |
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