Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water
This study developed a novel sorbent, magnetic silica-3-mercaptopropyltrimethoxysilane (MagSil-MPTMS) with enhanced organophosphorus (OPPs) and organochlorine (OCPs) pesticide extraction from water samples. Pesticide residues were extracted via magnetic solid-phase extraction (MSPE) and quantified u...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/120433/ http://psasir.upm.edu.my/id/eprint/120433/1/120433.pdf |
| _version_ | 1848868185897435136 |
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| author | Ramli, Fariesha Farha Wan Ibrahim, Wan Nazihah Abdul Wahab, Roswanira Kamaruzaman, Sazlinda Yahaya, Noorfatimah Mohamed, Ahmad Husaini Hanapi, Nor Suhaila Mohamad |
| author_facet | Ramli, Fariesha Farha Wan Ibrahim, Wan Nazihah Abdul Wahab, Roswanira Kamaruzaman, Sazlinda Yahaya, Noorfatimah Mohamed, Ahmad Husaini Hanapi, Nor Suhaila Mohamad |
| author_sort | Ramli, Fariesha Farha |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study developed a novel sorbent, magnetic silica-3-mercaptopropyltrimethoxysilane (MagSil-MPTMS) with enhanced organophosphorus (OPPs) and organochlorine (OCPs) pesticide extraction from water samples. Pesticide residues were extracted via magnetic solid-phase extraction (MSPE) and quantified using gas chromatography-mass spectrometry (GC-MS; HP-5MS column, splitless injection, selected ion monitoring (SIM) mode). The sorbent was synthesised from sustainable oil palm leave (OPL)-sourced silica and exhibited a mesoporous, aggregated, and rough structure with a high surface area and strong magnetism. Its functional groups, associated with magnetite, silica, and MPTMS, contributed significantly to its selectivity for OPPs and OCPs. The study employed Plackett-Burman screening followed by Box-Behnken optimisation, which identified sorbent mass, sample volume, and pH as the most significant factors influencing the extraction process (p-value <0.05). At 77 mg sorbent mass, 24 mL sample volume, and 5.8 sample pH, the MagSil-MPTMS recorded exceptional extraction efficiency for diazinon, chlorpyrifos, p'p-DDE, and dieldrin, documenting recovery rates and limits of detection between 86.22 % and 114.86 % and 0.59 ng mL−1–0.65 ng mL−1, respectively. The data also corresponded to the limits of quantification and relative standard deviations of 1.79 ng mL−1–1.98 ng mL−1 and 2.61 %–10.77 %, respectively. Moreover, the MagSil-MPTMS sorbent produced in the present study outperformed non-functionalised materials, a promising alternative for pesticide extraction from water samples. The findings championed sustainable waste management by valorising OPL as a renewable silica source. Furthermore, its 5.5 score of Analytical GREEnness (AGREE) metric contributed to the eco-friendliness of the developed sorbent. |
| first_indexed | 2025-11-15T14:48:23Z |
| format | Article |
| id | upm-120433 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:48:23Z |
| publishDate | 2025 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1204332025-10-02T01:44:48Z http://psasir.upm.edu.my/id/eprint/120433/ Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water Ramli, Fariesha Farha Wan Ibrahim, Wan Nazihah Abdul Wahab, Roswanira Kamaruzaman, Sazlinda Yahaya, Noorfatimah Mohamed, Ahmad Husaini Hanapi, Nor Suhaila Mohamad This study developed a novel sorbent, magnetic silica-3-mercaptopropyltrimethoxysilane (MagSil-MPTMS) with enhanced organophosphorus (OPPs) and organochlorine (OCPs) pesticide extraction from water samples. Pesticide residues were extracted via magnetic solid-phase extraction (MSPE) and quantified using gas chromatography-mass spectrometry (GC-MS; HP-5MS column, splitless injection, selected ion monitoring (SIM) mode). The sorbent was synthesised from sustainable oil palm leave (OPL)-sourced silica and exhibited a mesoporous, aggregated, and rough structure with a high surface area and strong magnetism. Its functional groups, associated with magnetite, silica, and MPTMS, contributed significantly to its selectivity for OPPs and OCPs. The study employed Plackett-Burman screening followed by Box-Behnken optimisation, which identified sorbent mass, sample volume, and pH as the most significant factors influencing the extraction process (p-value <0.05). At 77 mg sorbent mass, 24 mL sample volume, and 5.8 sample pH, the MagSil-MPTMS recorded exceptional extraction efficiency for diazinon, chlorpyrifos, p'p-DDE, and dieldrin, documenting recovery rates and limits of detection between 86.22 % and 114.86 % and 0.59 ng mL−1–0.65 ng mL−1, respectively. The data also corresponded to the limits of quantification and relative standard deviations of 1.79 ng mL−1–1.98 ng mL−1 and 2.61 %–10.77 %, respectively. Moreover, the MagSil-MPTMS sorbent produced in the present study outperformed non-functionalised materials, a promising alternative for pesticide extraction from water samples. The findings championed sustainable waste management by valorising OPL as a renewable silica source. Furthermore, its 5.5 score of Analytical GREEnness (AGREE) metric contributed to the eco-friendliness of the developed sorbent. Elsevier 2025 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/120433/1/120433.pdf Ramli, Fariesha Farha and Wan Ibrahim, Wan Nazihah and Abdul Wahab, Roswanira and Kamaruzaman, Sazlinda and Yahaya, Noorfatimah and Mohamed, Ahmad Husaini and Hanapi, Nor Suhaila Mohamad (2025) Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water. Talanta, 295. art. no. 128323. pp. 1-14. ISSN 0039-9140; eISSN: 0039-9140 https://linkinghub.elsevier.com/retrieve/pii/S0039914025008136 10.1016/j.talanta.2025.128323 |
| spellingShingle | Ramli, Fariesha Farha Wan Ibrahim, Wan Nazihah Abdul Wahab, Roswanira Kamaruzaman, Sazlinda Yahaya, Noorfatimah Mohamed, Ahmad Husaini Hanapi, Nor Suhaila Mohamad Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title | Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title_full | Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title_fullStr | Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title_full_unstemmed | Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title_short | Dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| title_sort | dual modification of oil palm leaves-derived silica for simultaneous magnetic solid phase extraction of organophosphorus and organochlorine pesticides in environmental water |
| url | http://psasir.upm.edu.my/id/eprint/120433/ http://psasir.upm.edu.my/id/eprint/120433/ http://psasir.upm.edu.my/id/eprint/120433/ http://psasir.upm.edu.my/id/eprint/120433/1/120433.pdf |