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- E-ISSN 2288-8985
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Studies on the Polyethylenimine-Polymethylenepolyphenylene Isocyanate Backbone Chelating Resin Synthesis for the Trace Heavy Metals Enrichment and Analysis(II) : Rubeanic Acid Loaded Carboxymethylated Polyamine-Polyurea Resin
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.5, pp.435-442
Chung,
Y. S., Lee,
K. W., Hwang,
J., &
Lim,
K.
S.
(1993). Studies on the Polyethylenimine-Polymethylenepolyphenylene Isocyanate Backbone Chelating Resin Synthesis for the Trace Heavy Metals Enrichment and Analysis(II) : Rubeanic Acid Loaded Carboxymethylated Polyamine-Polyurea Resin. Analytical Science and Technology, 6(5), 435-442.
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Abstract
Carboxymethylated polyamine-polyurea resin loaded with rubeanic acid (RCCPPI resin) was obtained by 1 step chemical reaction between chlorocarboxymethylated polyamine-polyurea(CCPPI) resin as matrix polymer and rebeanic acid. This resin was confirmed with infrared spectrometry, elemental analysis, and thermal analysis(DSC). The adsorption characteristics of the heavy metal's on the resin were studied by measuring distribution coefficient(<TEX>$K_d$</TEX>) with changing pH of the solutions and frontal chromatography. The enrichment, recovery, and analysis of trace heavy metals, such as cadmium, cerium, copper, nikel, lead, and zinc, in the presence of high concentrations of sodium, calcium, and acetate salts was possible quantitatively by a column packed with the resin at each optimum pH. Preconcentration factors were more than 25. To elute the adsorbed heavy metals on the resin, 0.025M EDTA solution(pH 9.0) was used.
- keywords
- Rubeanic acid, Polyamine-polyurea resin, Capacity, Enrichment, Selectivity, Frontal chromatography
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