On-line electrochemical preconcentration and electrochemical hydride generation for determination of antimony by high-resolution continuum source atomic absorption spectrometry
| Autor: | Jakub Masac, Lubomir Machynak, Jan Lovic, Frantisek Cacho, Ernest Beinrohr |
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| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Hydride 010401 analytical chemistry Analytical chemistry chemistry.chemical_element 02 engineering and technology Microporous material 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry law.invention Cuvette Antimony chemistry law Electrode 0210 nano-technology Atomic absorption spectroscopy |
| Zdroj: | Talanta. 223:121767 |
| ISSN: | 0039-9140 |
| Popis: | Trace concentrations of antimony in aquatic samples were determined by high resolution continuum-source atomic absorption spectrometry (HR-CS AAS) after electrochemical pre-concentration and electrochemical hydride generation. Antimony was electrochemically deposited in a microporous glassy carbon electrode as elemental antimony then was electrochemically converted at the same electrode surface to antimony hydride which was transported by argon gas to the quartz cuvette of the spectrometer. The detection limit and precision of the method are below 0.1 μg L−1 and 3–5%, respectively. The method was employed for the determination of antimony in a CRM and water samples including surface, underground and waste water. |
| Databáze: | OpenAIRE |
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