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Determination of Antimony in Soil Samples by Flow-through Stripping Chronopotentiometry with a Microporous Mercury-Film Electrode
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Determination of Antimony in Soil Samples by Flow-through Stripping Chronopotentiometry with a Microporous Mercury-Film Electrode
A. Manová, M. Střelec, E. Beinrohr
Slovak University of Technology, Institute of Analytical Chemistry, Radlinského 9, 812 37 Bratislava, Slovakia
Pol. J. Environ. Stud. 2007;16(4):607–611
Flow-through stripping chronopotentiometry was used for the determination of antimony in soil samples. Antimony was deposited in potentiostatic mode on a glassy carbon porous electrode coated with Nafion® and mercury and then stripped with constant current. The accuracy of the results was confirmed by graphite furnace atomic absorption spectrometry. The LOD and LO Q were found to be 0.6 ug dm-3 and 1.7 ug dm-3, respectively. A linear response range was observed in the concentration range of 1 to 200 ug dm-3 for sample volumes of 4 ml. The repeatability and reproducibility were found to be 2.9% and 5.2%, respectively.
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