Adsorptive stripping voltammetric determination of trace amounts of lead in environmental water samples with complicated matrix

M. Grabarczyk, A. Koper, Nicola Pirrone
2013 E3S Web of Conferences  
A sensitive, simple and fast adsorptive stripping voltammetric procedure for trace determination of lead in environmental water samples has been developed. The method is based on adsorptive accumulation of the Pb(II)-cupferron complex onto a hanging mercury drop electrode, followed by the reduction of the adsorbed species by a voltammetric scan using differential pulse modulation. The interference from surface active substances was eliminated by adsorption of interferents onto an Amberlite
more » ... 6 resin. Optimum conditions for removing the surfactants by mixing the analysed sample with resin were evaluated. The accuracy of the method was tested by analyzing certified reference material (SPS-WW1 Waste Water).
doi:10.1051/e3sconf/20130109005 fatcat:ebirnu4hszgoziaz6ttifib3gu