Organophosphorus pesticide multiresidues in commercialized Asian rice
The organophosphorus pesticides (OPPs) commonly used in agricultural practices can pose a risk of potential exposure to humans via food consumption. We describe an analytical method for solid-phase extraction coupled with high-performance liquid chromatography–diode array detector (SPE–HPLC–DAD) for...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/87030/ http://psasir.upm.edu.my/id/eprint/87030/1/Organophosphorus%20pesticide%20multiresidues.pdf |
| _version_ | 1848860347992113152 |
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| author | Mohd Azlan, Nadiah Syafiqah Wee, Sze Yee Ismail, Nur Afifah Hanun Mohmad Nasir, Hanisah Aris, Ahmad Zaharin |
| author_facet | Mohd Azlan, Nadiah Syafiqah Wee, Sze Yee Ismail, Nur Afifah Hanun Mohmad Nasir, Hanisah Aris, Ahmad Zaharin |
| author_sort | Mohd Azlan, Nadiah Syafiqah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The organophosphorus pesticides (OPPs) commonly used in agricultural practices can pose a risk of potential exposure to humans via food consumption. We describe an analytical method for solid-phase extraction coupled with high-performance liquid chromatography–diode array detector (SPE–HPLC–DAD) for the detection of OPPs (quinalphos, diazinon, and chlorpyrifos) in rice grains. The isolation of targeted residues was initiated with double extraction before SPE–HPLC–DAD, crucially reducing matrix interferences and detecting a wide range of multiple residues in rice grains. Coefficients of 0.9968 to 0.9991 showed a strong linearity, with limits of detection and quantification ranging from 0.36 to 0.68 µg/kg and from 1.20 to 2.28 µg/kg, respectively. High recoveries (80.4–110.3%) were observed at 3 spiking levels (50, 100, and 200 µg/kg), indicating good accuracy. The relative standard deviations of all residues (0.19–8.66%) validated the method precision. Sample analysis of 10 rice grain types (n = 30) available in the Asian market revealed that quinalphos, diazinon, and chlorpyrifos at concentrations of 1.08, 1.11, and 1.79 µg/kg, respectively, remained far below the maximum residue limits (0.01–0.5 mg/kg). However, regular monitoring is necessary to confirm that multiresidue occurrence remains below permissible limits while controlling pests. Environ Toxicol Chem 2020;39:1908–1917. |
| first_indexed | 2025-11-15T12:43:48Z |
| format | Article |
| id | upm-87030 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:43:48Z |
| publishDate | 2020 |
| publisher | Wiley |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-870302022-01-13T02:21:23Z http://psasir.upm.edu.my/id/eprint/87030/ Organophosphorus pesticide multiresidues in commercialized Asian rice Mohd Azlan, Nadiah Syafiqah Wee, Sze Yee Ismail, Nur Afifah Hanun Mohmad Nasir, Hanisah Aris, Ahmad Zaharin The organophosphorus pesticides (OPPs) commonly used in agricultural practices can pose a risk of potential exposure to humans via food consumption. We describe an analytical method for solid-phase extraction coupled with high-performance liquid chromatography–diode array detector (SPE–HPLC–DAD) for the detection of OPPs (quinalphos, diazinon, and chlorpyrifos) in rice grains. The isolation of targeted residues was initiated with double extraction before SPE–HPLC–DAD, crucially reducing matrix interferences and detecting a wide range of multiple residues in rice grains. Coefficients of 0.9968 to 0.9991 showed a strong linearity, with limits of detection and quantification ranging from 0.36 to 0.68 µg/kg and from 1.20 to 2.28 µg/kg, respectively. High recoveries (80.4–110.3%) were observed at 3 spiking levels (50, 100, and 200 µg/kg), indicating good accuracy. The relative standard deviations of all residues (0.19–8.66%) validated the method precision. Sample analysis of 10 rice grain types (n = 30) available in the Asian market revealed that quinalphos, diazinon, and chlorpyrifos at concentrations of 1.08, 1.11, and 1.79 µg/kg, respectively, remained far below the maximum residue limits (0.01–0.5 mg/kg). However, regular monitoring is necessary to confirm that multiresidue occurrence remains below permissible limits while controlling pests. Environ Toxicol Chem 2020;39:1908–1917. Wiley 2020-07-04 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87030/1/Organophosphorus%20pesticide%20multiresidues.pdf Mohd Azlan, Nadiah Syafiqah and Wee, Sze Yee and Ismail, Nur Afifah Hanun and Mohmad Nasir, Hanisah and Aris, Ahmad Zaharin (2020) Organophosphorus pesticide multiresidues in commercialized Asian rice. Environmental Toxicology and Chemistry, 39 (10). 1908 - 1917. ISSN 0730-7268; ESSN: 1552-8618 https://setac.onlinelibrary.wiley.com/doi/10.1002/etc.4813 10.1002/etc.4813 |
| spellingShingle | Mohd Azlan, Nadiah Syafiqah Wee, Sze Yee Ismail, Nur Afifah Hanun Mohmad Nasir, Hanisah Aris, Ahmad Zaharin Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title | Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title_full | Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title_fullStr | Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title_full_unstemmed | Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title_short | Organophosphorus pesticide multiresidues in commercialized Asian rice |
| title_sort | organophosphorus pesticide multiresidues in commercialized asian rice |
| url | http://psasir.upm.edu.my/id/eprint/87030/ http://psasir.upm.edu.my/id/eprint/87030/ http://psasir.upm.edu.my/id/eprint/87030/ http://psasir.upm.edu.my/id/eprint/87030/1/Organophosphorus%20pesticide%20multiresidues.pdf |