Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water
A novel graphene oxide-molecularly imprinted polymers (GO-MIPs) was prepared and applied for selective extraction and preconcentration of bis(2-ethylhexyl) phthalate (DEHP) in environmental water samples by using the dispersive solid-phase microextraction (DSPME) method. The GO-MIPs was synthesized...
| Main Authors: | , , , , |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/55545/ |
| _version_ | 1848799180694224896 |
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| author | Cheng, Lidong Pan, Shuihong Ding, Chuyuan He, Jun Wang, Chengjun |
| author_facet | Cheng, Lidong Pan, Shuihong Ding, Chuyuan He, Jun Wang, Chengjun |
| author_sort | Cheng, Lidong |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A novel graphene oxide-molecularly imprinted polymers (GO-MIPs) was prepared and applied for selective extraction and preconcentration of bis(2-ethylhexyl) phthalate (DEHP) in environmental water samples by using the dispersive solid-phase microextraction (DSPME) method. The GO-MIPs was synthesized via precipitation polymerization using GO, DEHP, methacrylic acid, and ethylene dimethacrylate as supporting materials, template molecules, functional monomer, and cross-linker, respectively. The prepared GO-MIPs were characterized by scanning electron microscope and Fourier transform infrared spectroscopy. The GO-MIPs-DSPME conditions including type and volume of elution solvents, adsorbents amount, initial concentration of DEHP, pH and ionic strength of water samples were investigated. Under optimized conditions, the DEHP was selectively and effectively extracted in real water samples and enrichment factors of over 100-fold were achieved. Good linearity was obtained with correlation coefficients (R2) over 0.999 and the detection limit (S/N = 3) was 0.92 ng mL−1. The average recoveries of the spiked samples at three concentration levels of DEHP ranged from 82% to 92% with the relative standard deviations less than 6.7%. The results indicated that the proposed GO-MIPs-DSPME extraction protocol combined with HPLC-UV determination could be applied for selective and sensitive analysis of trace DEHP phthalate in environmental water samples. |
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| format | Article |
| id | nottingham-55545 |
| institution | University of Nottingham Malaysia Campus |
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| language | English |
| last_indexed | 2025-11-14T20:31:34Z |
| publishDate | 2017 |
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| spelling | nottingham-555452019-07-06T04:30:19Z https://eprints.nottingham.ac.uk/55545/ Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water Cheng, Lidong Pan, Shuihong Ding, Chuyuan He, Jun Wang, Chengjun A novel graphene oxide-molecularly imprinted polymers (GO-MIPs) was prepared and applied for selective extraction and preconcentration of bis(2-ethylhexyl) phthalate (DEHP) in environmental water samples by using the dispersive solid-phase microextraction (DSPME) method. The GO-MIPs was synthesized via precipitation polymerization using GO, DEHP, methacrylic acid, and ethylene dimethacrylate as supporting materials, template molecules, functional monomer, and cross-linker, respectively. The prepared GO-MIPs were characterized by scanning electron microscope and Fourier transform infrared spectroscopy. The GO-MIPs-DSPME conditions including type and volume of elution solvents, adsorbents amount, initial concentration of DEHP, pH and ionic strength of water samples were investigated. Under optimized conditions, the DEHP was selectively and effectively extracted in real water samples and enrichment factors of over 100-fold were achieved. Good linearity was obtained with correlation coefficients (R2) over 0.999 and the detection limit (S/N = 3) was 0.92 ng mL−1. The average recoveries of the spiked samples at three concentration levels of DEHP ranged from 82% to 92% with the relative standard deviations less than 6.7%. The results indicated that the proposed GO-MIPs-DSPME extraction protocol combined with HPLC-UV determination could be applied for selective and sensitive analysis of trace DEHP phthalate in environmental water samples. Elsevier 2017-08-18 Article PeerReviewed application/pdf en cc_by_nc_nd https://eprints.nottingham.ac.uk/55545/1/2017-Dispersive%20SPME%20with%20graphene%20oxide.pdf Cheng, Lidong, Pan, Shuihong, Ding, Chuyuan, He, Jun and Wang, Chengjun (2017) Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water. Journal of Chromatography A, 1511 . pp. 85-91. ISSN 1873-3778 Bis(2-ethylhexyl) phthalate; Graphene oxide-molecularly imprinted polymers; Dispersive solid phase microextraction; Environmental water https://www.sciencedirect.com/science/article/pii/S0021967317309949 doi:10.1016/j.chroma.2017.07.012 doi:10.1016/j.chroma.2017.07.012 |
| spellingShingle | Bis(2-ethylhexyl) phthalate; Graphene oxide-molecularly imprinted polymers; Dispersive solid phase microextraction; Environmental water Cheng, Lidong Pan, Shuihong Ding, Chuyuan He, Jun Wang, Chengjun Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title | Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title_full | Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title_fullStr | Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title_full_unstemmed | Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title_short | Dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| title_sort | dispersive solid-phase microextraction with graphene oxide based molecularly imprinted polymers for determining bis(2-ethylhexyl) phthalate in environmental water |
| topic | Bis(2-ethylhexyl) phthalate; Graphene oxide-molecularly imprinted polymers; Dispersive solid phase microextraction; Environmental water |
| url | https://eprints.nottingham.ac.uk/55545/ https://eprints.nottingham.ac.uk/55545/ https://eprints.nottingham.ac.uk/55545/ |