Artículos de revistas
Preconcentración y Atomización con tubo en la llama para la determinación de cadmio en agua de mar.
Autor
González Sepúlveda, Elizabeth
Artigas, Andrea
Neira, José
Resumen
Artículo de publicación ISI 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),preconcentration factor of 34 and repeatability of 1,8% (calculated as RSD, N=8 and containing 200 ng L-1 of Cd ).