| Chinese Journal of Applied Chemistry 2009, 26(6) 721-725 DOI: ISSN: 1000-0518 CN: 22-1128/O6 | |||||||||||||||||||||||||||||||||||||||||
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Preparation of Pb-MIPS and Its Application to Determination of Trace Amounts of Lead | |||||||||||||||||||||||||||||||||||||||||
| Abstract:
By using lead ion(II) as the template molecule, sodium vinylbenzoic- acid as the functional monomer and divinyl benzene as the cross-linking monomer, lead molecularly imprinted polymers (Pb-MIPS) were synthesized by preassembling and surface-imprinting technology. In this paper, the structure of Pb-MIPS was chara- cterized with FT-IR spectrometer and specific surface area apparatus, and the adsorp- tion properties and selective recognition of Pb-MIPS for lead ion was also studied. The experimenttal results show that Pb-MIPS has a high adsorption capacity and good selective recognition for lead ion,and the maximum adsorption capacity of Pb-MIPS is 725μg/g. Pb-MIPS was applied to determination of lead in water sample, the results show that the GA atomic adsorption measurement ability for trace lead in sample can be obviously improved. | |||||||||||||||||||||||||||||||||||||||||
| Keywords: Molecular imprinting polymer Lead Sodium vinylbenzoic- acid Adsorption Selective recognition | |||||||||||||||||||||||||||||||||||||||||
| Received 2008-05-30 Revised 2008-08-27 Online: 2009-06-26 | |||||||||||||||||||||||||||||||||||||||||
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