Title of article :
Flame atomic absorption spectrometric 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 para tolyl Qinazoline (1 H)- 4 one (DPTQO)
Author/Authors :
Raoufi, Farveh Chemistry Department - Ilam Branch Islamic Azad University , Bagheri, Saidah Chemistry Department - Islamic Azad University , Niknam, Ebrahim Chemistry Department - Kangan Branch Islamic Azad University , Niknam, Khodabakhsh Department of Chemistry - Faculty of Sciences - Persian Gulf University , Farmani, Hamid Reza Chemistry Department - Ahram Branch Islamic Azad University
Abstract :
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 para tolyl Qinazoline (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 �g mL-1 for Cd2+
ion 0.01–0.90 �g mL-1 for Zn2+ and 0.02–0.92 �g mL-1for Ag+ detection limit for Cd(II), Zn(II) and Ag(I) ions were found to be 1.4, 1.3 and1.12 (ng mL-1), respectively. It was found that the recovery
for Cd2+, Zn2+and Ag+ ions were 97.7, 98.2 and 98.0 with RSD of 1.9, 1.8 and 1.7. It was also observed that recovery for repeated recovery on the same solid phase not varies more than 3%. The
presented procedure was successfully applied for determination of analytes in radiology wastewater, amalgam, natural water and blood samples.
Keywords :
Atomic absorption spectrometry , Recovery , Determination , Solid phase extraction , Surfactant coated on alumina
Journal title :
Astroparticle Physics
