%0 Conference Proceedings %T Synthesis, characterization of silica gel phases chemically immobilized 2-aminothiophenole and use of it for preconcentration and determination of trace amount of lead by flame atomic absorption spectrometry %A SHokooh Saljooghi, Amir %A S. Jamil. A. Fatemi %J دوازدهمین سمینار و چهارمین گردهمایی اساتید شیمی آلی ایران %D 2006