%0 Journal Article %T DETERMINATION OF TRACE AMOUNTS OF ZINC BY FLAME ATOMIC ABSORPTION SPECTROMETRY AFTER SEPARATION AND PRECONCENTRATION ONTO MODIFIED NATURAL ANALCIME ZEOLITE LOADED 2,3,5,6-TETRA(2-PYRIDYL)PYRAZINE %A SHokooh Saljooghi, Amir %A SJ Fatemi %A D Afzali %J Bulletin of the Chemical Society of Ethiopia %@ 1011-3924 %D 2010