Determination of Antimony in Soil Samples by Flow-through Stripping Chronopotentiometry with a Microporous Mercury-Film Electrode
A. Manová, M. Střelec, E. Beinrohr
More details
Hide details
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 μg dm-3 and 1.7 μg dm-3, respectively. A linear response range was observed in the concentration range of 1 to 200 μg dm-3 for sample volumes of 4 ml. The repeatability and reproducibility were found to be 2.9% and 5.2%, respectively.