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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/755

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dc.contributor.authorManjeet Kumar-
dc.contributor.authorRathore, D P S-
dc.contributor.authorSingh, Ajai K-
dc.date.accessioned2005-08-13T07:08:43Z-
dc.date.available2005-08-13T07:08:43Z-
dc.date.issued2000-
dc.identifier.citationTalanta, 51(6), 1187–1196en
dc.identifier.urihttp://eprint.iitd.ac.in/dspace/handle/2074/755-
dc.description.abstractA stable chelating resin matrix was synthesized by covalently linking o-aminophenol (o-AP) with the benzene ring of the polystyrene–divinylbenzene resin, Amberlite XAD-2, through a –N=N– group. Elemental analyses, thermogravimetric analysis (TGA) and infrared spectra have characterized the resulting chelating resin. It has been used to preconcentrate Cu2+, Cd2+, Co2+, Ni2+, Zn2+ and Pb2+, prior to their determination by flame atomic absorption spectrometry. The optimum pH values for quantitative sorption of Cu, Cd, Co, Ni, Zn and Pb are 6.2–7.4, 5.6–7.2, 5.6–9.0, 6.0–9.0, 5.7–7.0 and 5.0–6.0, respectively. These metals are desorbed (recovery 91–98%) with 4 mol dm-3 HNO3. The orption capacity of the resin is 3.37, 3.42, 3.29, 3.24, 2.94 and 3.32 mg of metal g-1 of resin, respectively, for Cu, Cd, Co, Ni, Zn and Pb. The effect of NaF, NaCl, NaNO3, Na2SO4, and Na3PO4 on the sorption of these metal ions has been investigated. These electrolytes are tolerable up to 0.01 mol dm-3 in case of all the metal ions, except Cl- which is tolerable even up to 0.1 mol dm-3 for Zn and 1.0 mol dm-3 for Pb. The preconcentration factor for Cu, Cd, Co, Ni, Zn and Pb are 50, 50, 100, 65, 40 and 40 (concentration level 10–25 mg dm-3) respectively. Simultaneous enrichment of the six metals is possible. The method has been applied to determine Cu, Cd, Co, Ni, Zn and Pb content in well water samples (RSD<58%).en
dc.format.extent278154 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.subjectAmberlite XAD-2en
dc.subjecto-Aminophenolen
dc.subjectAtomic absorption spectrometryen
dc.subjectCopperen
dc.subjectCadmiumen
dc.subjectCobalten
dc.subjectNickelen
dc.subjectZincen
dc.subjectLeaden
dc.subjectPreconcentrationen
dc.subjectWater analysisen
dc.titleAmberlite XAD-2 functionalized with o-aminophenol: synthesis and applications as extractant for copper(II), cobalt(II), cadmium(II), nickel(II), zinc(II) and lead(II)en
dc.typeArticleen
Appears in Collections:Chemistry

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