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) fo...
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my.unimas.ir.393142023-03-31T03:10:06Z http://ir.unimas.my/id/eprint/39314/ Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice Nadiah Syafiqah Mohd, Azlan Sze Yee, Wee Nur Afifah Hanun, Ismail Hanisah Mohmad, Nasir Ahmad Zaharin, Aris GE Environmental Sciences HD61 Risk Management 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;00:1–10. © 2020 SETAC. Wiley 2020-07-04 Article PeerReviewed text en http://ir.unimas.my/id/eprint/39314/3/Organophosphorus%20-%20Copy.pdf Nadiah Syafiqah Mohd, Azlan and Sze Yee, Wee and Nur Afifah Hanun, Ismail and Hanisah Mohmad, Nasir and Ahmad Zaharin, Aris (2020) Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice. Environmental Toxicology and Chemistry, 39 (10). pp. 1908-1917. ISSN 0730-7268 https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.4813 10.1002/etc.4813 |
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GE Environmental Sciences HD61 Risk Management Nadiah Syafiqah Mohd, Azlan Sze Yee, Wee Nur Afifah Hanun, Ismail Hanisah Mohmad, Nasir Ahmad Zaharin, Aris Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice |
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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;00:1–10. © 2020 SETAC. |
format |
Article |
author |
Nadiah Syafiqah Mohd, Azlan Sze Yee, Wee Nur Afifah Hanun, Ismail Hanisah Mohmad, Nasir Ahmad Zaharin, Aris |
author_facet |
Nadiah Syafiqah Mohd, Azlan Sze Yee, Wee Nur Afifah Hanun, Ismail Hanisah Mohmad, Nasir Ahmad Zaharin, Aris |
author_sort |
Nadiah Syafiqah Mohd, Azlan |
title |
Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice |
title_short |
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_sort |
organophosphorus pesticide multiresidues in commercialized asian rice |
publisher |
Wiley |
publishDate |
2020 |
url |
http://ir.unimas.my/id/eprint/39314/3/Organophosphorus%20-%20Copy.pdf http://ir.unimas.my/id/eprint/39314/ https://setac.onlinelibrary.wiley.com/doi/full/10.1002/etc.4813 |
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1762396706618474496 |
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13.159267 |