Determination of Trace Copper,Zinc,Lead and Cadmium in Seawater by Atomic Absorption Spectrometry after Solvent Extraction
Lei Li
Abstract
Lei Li
Abstract
A method for the determination of trace Cu,Zn,Pb and Cd in sea water by atomic absorption spectrometry after extraction and back-extraction was proposed in this paper.For the determination of Cd,Pb and Cd,graphite furnace atomic absorption spectremetry with Mg(NO3)2 as matrix moditier was used,while flame atomic absorption spectrometry was employed for the determination of Zn.The developed method was used for the determination of trace Cu,Zn,Pb and Cd in sea water with recoveries in the range of 96.9%~100.8%.
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A method for the determination of trace Cu,Zn,Pb and Cd in sea water by atomic absorption spectrometry after extraction and back-extraction was proposed in this paper.For the determination of Cd,Pb and Cd,graphite furnace atomic absorption spectremetry with Mg(NO3)2 as matrix moditier was used,while flame atomic absorption spectrometry was employed for the determination of Zn.The developed method was used for the determination of trace Cu,Zn,Pb and Cd in sea water with recoveries in the range of 96.9%~100.8%.
Key concepts: Chemistry, Cadmium, Graphite furnace atomic absorption, Atomic absorption spectroscopy, Seawater, Zinc, Copper, Extraction (chemistry)