Preconcentración y atomización con tubo en la llama para la determinación de Cadmio en agua de mar
| Autor: | José Neira Hinojosa, Elizabeth González Sepúlveda, Andrea Artigas Fuentes |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Detection limit
Cadmium Chromatography cadmium Analytical chemistry chemistry.chemical_element Artificial seawater Thermospray General Chemistry law.invention TS-FF-AAS Matrix (chemical analysis) lcsh:Chemistry Sample volume chemistry lcsh:QD1-999 law Seawater Atomic absorption spectroscopy seawater |
| Zdroj: | Química Nova, Vol 34, Iss 4, Pp 700-703 (2011) Química Nova v.34 n.4 2011 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ |
| ISSN: | 1678-7064 |
| Popis: | A flow injection on-line pre-concentration system coupled to thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) for cadmium determination at sub μg L-1 levels in seawater samples was developed. The on-line system was evaluated by analysing cadmium containing in a synthetic seawater matrix (2.5% m/v NaCl, 0.5% m/v MgCl2 and 0.8% m/v CaCl2). A sample volume of 2 mL allows determining Cd with a detection limits of 30 ng L-1 (3* σblank/slope), pre-concentration factor of 34 and repeatability of 1,8% (calculated as RSD, N=8 and containing 200 ng L-1 of Cd ). |
| Databáze: | OpenAIRE |
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