A New Procedure for Voltammetric Lead Determination Based on Coprecipitation and Centrifugation Preconcentration
Makaleler > Tam Makale · 2004
Yazarlar: U ANIK, H TURAL, Fatma Nil ERTAŞ
Electroanalysis, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2004, cilt 16, ss 765-768
Özet
Abstract An arrangement of a voltammetric cell specially designed to be compatible to both centrifugation and voltammetry was designed, allowing direct measurement without any need for dissolution or filtration steps. The procedure for the preconcentration via coprecipitation is described. The system was succesfully tested using trace amounts of Pb(II) ions in aqueous solution preconcentrated with Al(OH)3 as the carrier precipitate and resulting peak currents were found much higher than those without applying centrifugation. The effects of the parameters on the resulting signal were examined and the detection limit was found as 2.2×10−9 M.