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A sensitive and selective solid phase extraction procedure for the determination of traces of Cd(II), Zn(II) and Ag(I) ions has been developed. An alumina-sodium dodecyl sulfate (SDS) coated on with 2,3 Di Hydro 2,3 paratolylQinazoline (1 H)- 4 one (DPTQO). The influences of the analytical parameters including pH and sample volume were investigated.Common coexisting ions did not interfere on the separation and determination of analytes under study. The adsorbed analytes were desorbed by using 6mL of 4 mol L -1 nitric acid. The responses are linear 0.02–0.85 µg mL -1 for Cd 2+

oriental journal of chemistry/oriental journal of chemistry

Determination of Cd(II), Zn(II) and Ag(I)in Different Matrixes After Solid Phase Extraction on Sodium Dodecyl Sulfate(SDS)-Coated Alumina as their 2,3 Di Hydro 2,3 ParatolylQinazoline (1 H)- 4 one (DPTQO) by FlameAtomic Absorption Spectrometric