Electrothermal atomization-laser induced fluorescence determination of iridium,rhodium, palladium,platinum and gold at the ng/l level in pure water |
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| Institution: | 1. Northeast Asia Institute of Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130017, China;2. State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China;3. Department of Stomatology, the first medical center, General Hospital of the Chinese people''s Liberation Army, Beijing 100036, China |
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| Abstract: | Trace determination of Au, Rh, Ir, Pd and Pt in pure water solution has been performed by electrothermal atomization-laser induced fluorescence (ETA-LIF). Limits of detection obtained are in the ng/l−1 range, improving previously published absolute limits of detection by one or two orders of magnitude. The day to day reproducibility for iridium is around 8%. Thus, the ETA-LIF technique can be used routinely for the determination of precious metals at ultratrace concentrations. |
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