%0 Journal Article %T Synthesis, Characterization of Silica Gel Phases Chemically Immobilized with -2-Aminothiophenol and the Use of it for Preconcentration and Determination of Trace Amounts of Copper and Batch Studies by Flame Atomic Absorption Spectrometry %A M. Khosravan %A SHokooh Saljooghi, Amir %J European Journal of Scientific Research %@ 1450-216X %D 2009