الفهرس 
Introduction
Thermal analysisOnly 14 pages are availabe for public view
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Abstract
Chloromethylated polystyrene polymer (CMPS – polymer) has been modified with1 amino2 naphthol β sulphonic acid sodium salt (ANSA) and Eriochrome cyanine R (ECR) to be used as a new reagent for preconcentration of Cu(II), Co(II), Ni(II), Mn(II), Zn(II), Cd(II), Hg(II), Pb(II), Al(III), Fe(III) and Cr(III) ions. The modified polymers (ANSA-Polymer) and (ECR – polymer) have been characterized by elemental analysis and IR spectra. Batch and column extraction modes were described. Stability and reactivity of the modified resins did not affect by the presence of common organic solvents such as; ethanol, acetone, benzene and carbon tetra chloride . The resin kept its sorption capacity after treatment with 2 moll-1 of electrolytic solutions of KC1, NaCl and NaOH, and more or less unchanged in the presence of 5 moll-1 of acid solution, such as; hydrochloric or nitric acid . The optimum pH for the maximum sorption capacity of all the studied metal ions lie within the range 5 ~8. All the metal ions sorbed could be eluted using 0.5 moll-1 hydrochloric acid solution taken the advantage that, chloride ions is an acceptable matrix for both AAS and spectrophotomctric determinations. The complexation between metal ions and organic reagents loaded on CMPS-resin, could be evidenced by themal analysis,IR spectra and potentiometric titration. The proposed modified resins were applied for separation and preconcentration of metal ions from: Water samples ( Nile and Tap water).