Preconcentration, Separation and Multi-Elements Determination in Seawater Using a Cellulose-Zinc Hydroxide System with Inductively Coupled Plasma Atomic Emission Spectrometry

Abstract

The use of a cellulose-zinc hydroxide mixture for the micro determination of Cd(II), Cr(III), Cu(II), Fe(III), Hg(II), La(III), Ni(II), Pb(II), Sn(IV) and vanadate ion in a seawater sample at different pH was carried out employing ICP technique. The effects of concentration of Zn(II), mass of the cellulose, shaking time and the pH value of the sample on the preconcentration were studied. The method is simple and rapidly applicable for the microdetermination of ten heavy metals at ppb level. The effect of alkali and alkaline earth cations on the preconcentration of the tested metal ions was examined. The distribution coefficient K_d is in the range of 10^2.86-10^6.31cm³ g^-1.