Amberlite XAD-7 impregnated with morpholine dithiocarbamate as trace metal extractant |
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| Authors: | G Purna Chandra Rao S Satya Veni M Madhava Rao K Pratap M C Wang |
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| Institution: | 1. Department of Chemistry , Sri Venkateswara University , Tirupati – 517 502, India;2. Department of Environmental Engineering and Management , Chaoyang University of Technology , Wufong 413, Taichung County, Taiwan, ROC |
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| Abstract: | Application of Amberlite XAD-7 impregnated with morpholine dithiocarbamate (MDTC) for separation and preconcentration of trace amounts of lead, copper, cobalt, iron, nickel, cadmium and zinc and determination by ICP-AES has been described. The optimum experimental parameters, such as pH, sample flow rate, eluent and effect of matrix ions on the preconcentration were investigated. Simultaneous enrichment of the seven metals was accomplished. The t 1/2 values for sorption are 2.9, 3.3, 3.7, 3.6, 2.8, 4.1 and 2.8 respectively for Pb(II), Cu(II), Co(II), Fe(III), Ni(II), Cd(II) and Zn(II). The method was applied for the determination of trace metal ions in seawater and natural water samples. The results have been compared with extraction GFAAS method. |
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| Keywords: | Preconcentration trace metals Amberlite XAD-7 morpholine dithiocarbamate |
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