Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica
A new mesoporous silica based on the sol-gel material cyanopropyltriethoxysilane (CNPrTEOS) was successfully synthesized by the hydrolysis and condensation of CNPrTEOS in the presence of ammonium solution as catalyst and methanol as solvent. It was used as a solid-phase extraction sorbent for the si...
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Wiley-VCH Verlag
2016
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| author | Soutoudehnia Korrani, Z. Wan Ibrahim, W. A. Rashidi Nodeh, H. Aboul-Enein, H. Y. Sanagi, M. M. |
| author_facet | Soutoudehnia Korrani, Z. Wan Ibrahim, W. A. Rashidi Nodeh, H. Aboul-Enein, H. Y. Sanagi, M. M. |
| author_sort | Soutoudehnia Korrani, Z. |
| collection | ePrints |
| description | A new mesoporous silica based on the sol-gel material cyanopropyltriethoxysilane (CNPrTEOS) was successfully synthesized by the hydrolysis and condensation of CNPrTEOS in the presence of ammonium solution as catalyst and methanol as solvent. It was used as a solid-phase extraction sorbent for the simultaneous extraction of three organophosphorus pesticides, namely, polar dicrotophos and non-polar diazinon and chlorpyrifos. Analysis was performed using high-performance liquid chromatography with UV detection. CNPrTEOS was characterized by FTIR spectroscopy, field-emission scanning electron microscopy and nitrogen gas adsorption. The surface area and average pore diameter of the optimum sol-gel CNPrTEOS are 379 m2/g and 4.7 nm (mesoporous), respectively. The proposed solid-phase extraction based on CNPrTEOS exhibited good linearity in the range of 0.8-100 μg/L, satisfactory precision (1.15-3.82%), high enrichment factor (800) and low limit of detection (0.072-0.091 μg/L). The limits of detection obtained using the proposed solid-phase extraction method are well below the maximum residue limit set by European Union and are also lower (13.6-48.5×) than that obtained by using a commercial CN-SPE cartridge (0.98-4.41 μg/L). The new mesoporous sol-gel CNPrTEOS showed promising alternative as SPE sorbent material for the simultaneous extraction of polar and non-polar organophosphorus pesticides. |
| first_indexed | 2024-03-05T20:07:04Z |
| format | Article |
| id | utm.eprints-73823 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:07:04Z |
| publishDate | 2016 |
| publisher | Wiley-VCH Verlag |
| record_format | dspace |
| spelling | utm.eprints-738232017-11-18T07:52:00Z http://eprints.utm.my/73823/ Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica Soutoudehnia Korrani, Z. Wan Ibrahim, W. A. Rashidi Nodeh, H. Aboul-Enein, H. Y. Sanagi, M. M. QD Chemistry A new mesoporous silica based on the sol-gel material cyanopropyltriethoxysilane (CNPrTEOS) was successfully synthesized by the hydrolysis and condensation of CNPrTEOS in the presence of ammonium solution as catalyst and methanol as solvent. It was used as a solid-phase extraction sorbent for the simultaneous extraction of three organophosphorus pesticides, namely, polar dicrotophos and non-polar diazinon and chlorpyrifos. Analysis was performed using high-performance liquid chromatography with UV detection. CNPrTEOS was characterized by FTIR spectroscopy, field-emission scanning electron microscopy and nitrogen gas adsorption. The surface area and average pore diameter of the optimum sol-gel CNPrTEOS are 379 m2/g and 4.7 nm (mesoporous), respectively. The proposed solid-phase extraction based on CNPrTEOS exhibited good linearity in the range of 0.8-100 μg/L, satisfactory precision (1.15-3.82%), high enrichment factor (800) and low limit of detection (0.072-0.091 μg/L). The limits of detection obtained using the proposed solid-phase extraction method are well below the maximum residue limit set by European Union and are also lower (13.6-48.5×) than that obtained by using a commercial CN-SPE cartridge (0.98-4.41 μg/L). The new mesoporous sol-gel CNPrTEOS showed promising alternative as SPE sorbent material for the simultaneous extraction of polar and non-polar organophosphorus pesticides. Wiley-VCH Verlag 2016 Article PeerReviewed Soutoudehnia Korrani, Z. and Wan Ibrahim, W. A. and Rashidi Nodeh, H. and Aboul-Enein, H. Y. and Sanagi, M. M. (2016) Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica. Journal of Separation Science, 39 (6). pp. 1144-1151. ISSN 1615-9306 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977950729&doi=10.1002%2fjssc.201500896&partnerID=40&md5=310bae2910acf0f1c969734708b3ce8e |
| spellingShingle | QD Chemistry Soutoudehnia Korrani, Z. Wan Ibrahim, W. A. Rashidi Nodeh, H. Aboul-Enein, H. Y. Sanagi, M. M. Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title | Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title_full | Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title_fullStr | Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title_full_unstemmed | Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title_short | Simultaneous preconcentration of polar and non-polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| title_sort | simultaneous preconcentration of polar and non polar organophosphorus pesticides from water samples by using a new sorbent based on mesoporous silica |
| topic | QD Chemistry |
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