Cloud-point extraction, preconcentration, and spectrophotometric determination of palladium in water samples
| Autor: | Farzaneh Shemirani, Reyhaneh Rahnama Kozani, Mohammad Reza Jamali, Yaghoub Assadi, Mohammad-Reza Milani Hosseini |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Detection limit Cloud point Ketone Chromatography Calibration curve Health Toxicology and Mutagenesis Extraction (chemistry) Public Health Environmental and Occupational Health Soil Science chemistry.chemical_element Buffer solution Pollution Analytical Chemistry chemistry.chemical_compound chemistry Environmental Chemistry Waste Management and Disposal Thiobenzophenone Water Science and Technology Palladium |
| Zdroj: | International Journal of Environmental Analytical Chemistry. 86:1105-1112 |
| ISSN: | 1029-0397 0306-7319 |
| DOI: | 10.1080/03067310600833427 |
| Popis: | The possibility of using Thio-Michler's Ketone (TMK), 4,4′-bis(dimethylamino) thiobenzophenone, for palladium(II) concentrated by micellar extraction at the cloud-point temperature, and later spectrophotometric determination, was investigated. Under the optimum conditions, preconcentration of 50 mL of water samples in the presence of 0.1% (w/v) octylphenoxy polyethoxy ethanol (Triton X-114), 2 × 10−6 mol L−1 TMK and 1 × 10–3 mol L−1 buffer solution (pH = 3.0) gave the limit of detection of 0.47 ng mL−1, and the calibration graph was linear in the range of 2–50 ng mL–1. The recovery under optimum working conditions was higher than 97%. The proposed method has been applied to the spectrophotometric determination of palladium(II) in natural water samples after cloud-point extraction with satisfactory results. |
| Databáze: | OpenAIRE |
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