Investigation on the preconcentration conditions of some trace elements on amberlite XAD-16 and their determination by flame atomic absorption spectrocopy

INVESTIGATION ON THE PRECONCENTRAT I ON CONDITIONS OF SOME TRACE ELEMENTS ON AMBERLITE XAD-16 AND THEIR DETERMINATION BY FLAME ATOMIC ABSORPTION SPECTROCOPY (M.Sc. Thesis) Adalet Tunceli GAZ t UNIVERSITY INSTITUTE OF SCIENCE AND TECHNOLOGY Eylül 1991 ABSTRACT In this study, the solutions of Cu, Ni and Zn were preconcentrated on columns which were filled with XAD-16 and the optimum conditions were investigated. The recoveries of elements were 82,4 ± 0,3 %, 95 ± 3 % and 71 ± 1 % for Cu, Zn and Ni respectively at 95 % confidence limit. The recoveries were increased to about 99 % for Cu and Ni which were formed complexes with PAN (l-C2-piridi lazol-2-naf tol ). The presence of Na and K did not affected to the preconcentration of trace elements. The proposed method was applied on tap water and the concentrations of Cu, Zn and Ni were determined by FAAS. Science Code : 405 Keywords : Trace elements, Amber lite XAD-16 preconcentration, flame atomic absorption spectroscopy. Page Number : 106 Adviser : Doç. Dr. A. Rehber TÜRKER I I I