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Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
IJCT Vol.12(2) [March 2005] >
| Title: | Microwave-assisted synthesis and characterization of a new chelating resin functionalized with 2-aminothiazole: Application in trace level cadmium-mercury separation in biological samples |
| Authors: | Dutta, Suparna
Das, Arabinda K |
| Keywords: | Solid phase extraction
2-aminothiazole
Cd-Hg separation
AAS determination
microwave-assisted treatment
biological samples |
| Issue Date: | Mar-2005 |
| Publisher: | CSIR |
| IPC Code: | A61N5/01; B01D15/00 |
| Abstract: | Chloromethylated
polystyrene-divinylbenzene copolymer has been functionalized with
2-aminothiazole by using microwave irradiation. The resulting resin has been
characterized by elemental analysis, thermogravimetric analysis, infrared
spectra, water regain and metal sorption capacity. Various parameters like pH,
equilibriation rate and sorption and desorption of metal ions, and effect of
diverse ions have been studied. The maximum sorption capacities for Cd(II) and
Hg(II) are 0.15 (pH 1) and 0.51 mmol.g-1 (pH 6) respectively. The
concentration of Cd(II) was measured by flame atomic absorption spectrometry
while Hg(II) was measured by cold vapor atomic absorption spectrometry. The
limits of quantification (10σ) values
were found to be 5.70 and 0.14 ng mL–1 for Cd(II) and Hg(II)
respectively. The procedure has been applied to the determination of cadmium
and mercury in certified biological samples after their dissolution by
microwave-assisted treatment. The method is simple, rapid and free from
interference and can be used routinely. |
| Page(s): | 139-144 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.12(2) [March 2005]
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