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Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice.
Environ Toxicol Chem. 2020 10; 39(10):1908-1917.ET

Abstract

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. © 2020 SETAC.

Authors+Show Affiliations

Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32621623

Citation

Azlan, Nadiah Syafiqah Mohd, et al. "Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice." Environmental Toxicology and Chemistry, vol. 39, no. 10, 2020, pp. 1908-1917.
Azlan NSM, Wee SY, Ismail NAH, et al. Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice. Environ Toxicol Chem. 2020;39(10):1908-1917.
Azlan, N. S. M., Wee, S. Y., Ismail, N. A. H., Nasir, H. M., & Aris, A. Z. (2020). Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice. Environmental Toxicology and Chemistry, 39(10), 1908-1917. https://doi.org/10.1002/etc.4813
Azlan NSM, et al. Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice. Environ Toxicol Chem. 2020;39(10):1908-1917. PubMed PMID: 32621623.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice. AU - Azlan,Nadiah Syafiqah Mohd, AU - Wee,Sze Yee, AU - Ismail,Nur Afifah Hanun, AU - Nasir,Hanisah Mohmad, AU - Aris,Ahmad Zaharin, Y1 - 2020/08/17/ PY - 2019/11/04/received PY - 2019/12/15/revised PY - 2020/07/02/accepted PY - 2020/7/6/pubmed PY - 2021/2/9/medline PY - 2020/7/5/entrez KW - Consumption KW - Dietary exposure KW - Food safety KW - Human health KW - Organophosphorus pesticide residues KW - Rice grain SP - 1908 EP - 1917 JF - Environmental toxicology and chemistry JO - Environ Toxicol Chem VL - 39 IS - 10 N2 - 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. © 2020 SETAC. SN - 1552-8618 UR - https://www.unboundmedicine.com/medline/citation/32621623/Organophosphorus_Pesticide_Multiresidues_in_Commercialized_Asian_Rice_ DB - PRIME DP - Unbound Medicine ER -