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...
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| Veröffentlicht in: | Environmental toxicology and chemistry 2020-10, Vol.39 (10), p.1908-1917 |
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| creator | Azlan, Nadiah Syafiqah Mohd Wee, Sze Yee Ismail, Nur Afifah Hanun Nasir, Hanisah Mohmad Aris, Ahmad Zaharin |
| 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. © 2020 SETAC |
| doi_str_mv | 10.1002/etc.4813 |
| format | Article |
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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. 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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</description><subject>Agricultural practices</subject><subject>Agrochemicals</subject><subject>Asia</subject><subject>Chlorpyrifos</subject><subject>Chlorpyrifos - analysis</subject><subject>Chromatography, High Pressure Liquid - methods</subject><subject>Commercialization</subject><subject>Consumption</subject><subject>Crop Production</subject><subject>Diazinon</subject><subject>Diazinon - analysis</subject><subject>Dietary exposure</subject><subject>Economic conditions</subject><subject>Edible Grain - chemistry</subject><subject>Edible Grain - growth & development</subject><subject>Food consumption</subject><subject>Food Contamination - analysis</subject><subject>Food safety</subject><subject>Fungicides</subject><subject>Grain</subject><subject>High performance liquid chromatography</subject><subject>Human health</subject><subject>Humans</subject><subject>Insecticides</subject><subject>Limit of Detection</subject><subject>Linearity</subject><subject>Liquid chromatography</subject><subject>Organophosphorus Compounds - analysis</subject><subject>Organophosphorus pesticide residues</subject><subject>Organophosphorus pesticides</subject><subject>Organothiophosphorus Compounds - analysis</subject><subject>Oryza - chemistry</subject><subject>Oryza - growth & development</subject><subject>Pest control</subject><subject>Pesticide Residues - analysis</subject><subject>Pesticides</subject><subject>Pests</subject><subject>Quinalphos</subject><subject>Residues</subject><subject>Rice</subject><subject>Rice grain</subject><subject>Solid Phase Extraction - methods</subject><issn>0730-7268</issn><issn>1552-8618</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kMtKAzEUQIMotj7AL5ABN26m5p3MspT6gEpFdB0ySUZT5lGTGaR-vamt7lxc7uZw7uUAcIHgBEGIb1xvJlQicgDGiDGcS47kIRhDQWAuMJcjcBLjCkLEi6I4BiOCOUYckzGYL8Obbrv1exfThCFmTy723njrsseh7n1w0dvBxcy32axrGheM17X_cjabRq_b7NkbdwaOKl1Hd77fp-D1dv4yu88Xy7uH2XSRG4ohyY1kWjJDBBKoMtRSarCoKsEtdZZoU0pHILQUIUEFKysosWGCFQTJwlhWklNwtfOuQ_eRnurVqhtCm04qTCkrKOUUJep6R5nQxRhcpdbBNzpsFIJq20ulXmrbK6GXe-FQNs7-gb-BEpDvgE9fu82_IpWYH-E3pLJzPg</recordid><startdate>202010</startdate><enddate>202010</enddate><creator>Azlan, Nadiah Syafiqah Mohd</creator><creator>Wee, Sze Yee</creator><creator>Ismail, Nur Afifah Hanun</creator><creator>Nasir, Hanisah Mohmad</creator><creator>Aris, Ahmad Zaharin</creator><general>Blackwell Publishing Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7SN</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>7TK</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>SOI</scope></search><sort><creationdate>202010</creationdate><title>Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice</title><author>Azlan, Nadiah Syafiqah Mohd ; 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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</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>32621623</pmid><doi>10.1002/etc.4813</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Agricultural practices Agrochemicals Asia Chlorpyrifos Chlorpyrifos - analysis Chromatography, High Pressure Liquid - methods Commercialization Consumption Crop Production Diazinon Diazinon - analysis Dietary exposure Economic conditions Edible Grain - chemistry Edible Grain - growth & development Food consumption Food Contamination - analysis Food safety Fungicides Grain High performance liquid chromatography Human health Humans Insecticides Limit of Detection Linearity Liquid chromatography Organophosphorus Compounds - analysis Organophosphorus pesticide residues Organophosphorus pesticides Organothiophosphorus Compounds - analysis Oryza - chemistry Oryza - growth & development Pest control Pesticide Residues - analysis Pesticides Pests Quinalphos Residues Rice Rice grain Solid Phase Extraction - methods |
| title | Organophosphorus Pesticide Multiresidues in Commercialized Asian Rice |
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