Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation
In this paper, a separation procedure combining molecularly imprinted-solid phase extraction (MI-SPE) was developed for the isolation of melamine. The molecularly imprinted polymer (MIP) was prepared using precipitation polymerization method where melamine as template, 9-vinylcarbazole as functional...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
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MDPI
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/30225/ http://psasir.upm.edu.my/id/eprint/30225/1/Preparation%20and%20characterization%20of%20molecularly%20imprinted%20polymer%20as%20SPE%20sorbent%20for%20melamine%20isolation.pdf |
| _version_ | 1848846617236471808 |
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| author | Yusof, Nor Azah Ab. Rahman, Siti Khadijah Hussein, Mohd Zobir Ibrahim, Nor Azowa |
| author_facet | Yusof, Nor Azah Ab. Rahman, Siti Khadijah Hussein, Mohd Zobir Ibrahim, Nor Azowa |
| author_sort | Yusof, Nor Azah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this paper, a separation procedure combining molecularly imprinted-solid phase extraction (MI-SPE) was developed for the isolation of melamine. The molecularly imprinted polymer (MIP) was prepared using precipitation polymerization method where melamine as template, 9-vinylcarbazole as functional monomer, ethtylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as initiator. An off-line MI-SPE method followed by ultra-performance liquid chromatography detection of melamine was established. MIP showed a better affinity toward melamine compared to non imprinted polymer (NIP) with a maximum binding capacity of 53.01 mg/g MIP. Based on the correlation coefficients, the kinetic study indicated that the adsorption of melamine by MIP fit a pseudo-second order model. From isotherm study, adsorption of melamine by MIP increased when the concentration of melamine increased and followed a Freundlich isotherm model, which indicates the sorption can be described by multilayer sorption. The interference study proved that MIP has better binding capacity towards melamine if compared to NIP due to specific sites of melamine occurred in MIP particles. |
| first_indexed | 2025-11-15T09:05:33Z |
| format | Article |
| id | upm-30225 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:05:33Z |
| publishDate | 2013 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-302252015-10-26T02:28:56Z http://psasir.upm.edu.my/id/eprint/30225/ Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation Yusof, Nor Azah Ab. Rahman, Siti Khadijah Hussein, Mohd Zobir Ibrahim, Nor Azowa In this paper, a separation procedure combining molecularly imprinted-solid phase extraction (MI-SPE) was developed for the isolation of melamine. The molecularly imprinted polymer (MIP) was prepared using precipitation polymerization method where melamine as template, 9-vinylcarbazole as functional monomer, ethtylene glycol dimethacrylate as a cross-linker and benzoyl peroxide as initiator. An off-line MI-SPE method followed by ultra-performance liquid chromatography detection of melamine was established. MIP showed a better affinity toward melamine compared to non imprinted polymer (NIP) with a maximum binding capacity of 53.01 mg/g MIP. Based on the correlation coefficients, the kinetic study indicated that the adsorption of melamine by MIP fit a pseudo-second order model. From isotherm study, adsorption of melamine by MIP increased when the concentration of melamine increased and followed a Freundlich isotherm model, which indicates the sorption can be described by multilayer sorption. The interference study proved that MIP has better binding capacity towards melamine if compared to NIP due to specific sites of melamine occurred in MIP particles. MDPI 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/30225/1/Preparation%20and%20characterization%20of%20molecularly%20imprinted%20polymer%20as%20SPE%20sorbent%20for%20melamine%20isolation.pdf Yusof, Nor Azah and Ab. Rahman, Siti Khadijah and Hussein, Mohd Zobir and Ibrahim, Nor Azowa (2013) Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation. Polymers, 5 (4). pp. 1215-1228. ISSN 2073-4360 http://www.mdpi.com/2073-4360/5/4 10.3390/polym5041215 English |
| spellingShingle | Yusof, Nor Azah Ab. Rahman, Siti Khadijah Hussein, Mohd Zobir Ibrahim, Nor Azowa Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title | Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title_full | Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title_fullStr | Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title_full_unstemmed | Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title_short | Preparation and characterization of molecularly imprinted polymer as SPE sorbent for melamine isolation |
| title_sort | preparation and characterization of molecularly imprinted polymer as spe sorbent for melamine isolation |
| url | http://psasir.upm.edu.my/id/eprint/30225/ http://psasir.upm.edu.my/id/eprint/30225/ http://psasir.upm.edu.my/id/eprint/30225/ http://psasir.upm.edu.my/id/eprint/30225/1/Preparation%20and%20characterization%20of%20molecularly%20imprinted%20polymer%20as%20SPE%20sorbent%20for%20melamine%20isolation.pdf |