Comparative study of the Cd. Cu and Pb determination by AAS and by ICP-AES in river water : Application to a mediterranean river (Congost river, Catalonia, Spain) |
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Authors: | R Rubio J Huguet G Rauret |
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Affiliation: | Department of Analytical Chemistry, Faculty of Chemistry, Barcelona University, Barcelona 7, Spain |
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Abstract: | The accuracy, precision, detection limit and rapidity in the determination of Cd, Cu and Pb in river water by AAS determination, previous extraction with APDC-MIBK system, is compared with direct determination method ICP-AES. Both methods show a similar detection limit and an analogous accuracy by the addition standard method. With a calibration curve only ICP-AES presents good accuracy, this technique is advantageous in long term precision and requires minimum sample preparation. The sample stability at different temperature conservation is studied. Finally both methods are applied to the determination of Cd, Cu and Pb in Congost river water. |
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Keywords: | water-analysis trace metal analysis river water analysis water quality testing cadmium copper lead ICP-AES AAS |
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