High-Performance Thin-Layer Chromatographic Analysis of Selected Organophosphorous Pesticide Residues in Tea
The separation of 9 organophosphates (monocrotophos, quinalphos, triazophos, parathion-methyl, isofenphos-methyl, temephos, parathion, phoxim-ethyl, and chlorpyrifos) by high-performance thin-layer chromatography (HPTLC) with automated multiple development was studied. The HPTLC method was developed...
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| Veröffentlicht in: | Journal of AOAC International 2008-09, Vol.91 (5), p.1210-1217 |
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| creator | Yue, Yongde Zhang, Rong Fan, Wei Tang, Feng |
| description | The separation of 9 organophosphates (monocrotophos, quinalphos, triazophos, parathion-methyl, isofenphos-methyl, temephos, parathion, phoxim-ethyl, and chlorpyrifos) by high-performance thin-layer chromatography (HPTLC) with automated multiple development was studied. The HPTLC method was developed and validated for analysis of residues of phoxim-ethyl and chlorpyrifos in tea. The sample was extracted with acetonitrile and cleaned up by ENVI-CARB solid-phase extraction. The extract was directly applied as bands to glass-backed silica gel 60F254 HPTLC plates. The plates were developed with dichloromethane–hexane (1 + 1, v/v) in a glass twin-trough chamber. Evaluation of the developed HPTLC plates was performed densitometrically. The results indicated that the detection limits of phoxim and chlorpyrifos were 5.0 x 10-9 and 1.0 x 10-8 g, respectively. Recoveries of the pesticides from tea by this analytical method were 90.7-105.5%, and relative standard deviations were 7.3-13.5%. The precision and accuracy of the method were generally satisfactory for analysis of pesticide residues in tea. |
| doi_str_mv | 10.1093/jaoac/91.5.1210 |
| format | Article |
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The HPTLC method was developed and validated for analysis of residues of phoxim-ethyl and chlorpyrifos in tea. The sample was extracted with acetonitrile and cleaned up by ENVI-CARB solid-phase extraction. The extract was directly applied as bands to glass-backed silica gel 60F254 HPTLC plates. The plates were developed with dichloromethane–hexane (1 + 1, v/v) in a glass twin-trough chamber. Evaluation of the developed HPTLC plates was performed densitometrically. The results indicated that the detection limits of phoxim and chlorpyrifos were 5.0 x 10-9 and 1.0 x 10-8 g, respectively. Recoveries of the pesticides from tea by this analytical method were 90.7-105.5%, and relative standard deviations were 7.3-13.5%. The precision and accuracy of the method were generally satisfactory for analysis of pesticide residues in tea.</description><identifier>ISSN: 1060-3271</identifier><identifier>EISSN: 1944-7922</identifier><identifier>DOI: 10.1093/jaoac/91.5.1210</identifier><identifier>PMID: 18980143</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>accuracy ; Calibration ; Chemical properties ; Chemistry, Analytic ; Chromatography, Thin Layer ; Composition ; Densitometry ; environmental fate ; Indicators and Reagents ; Methods ; Organophosphorus Compounds - analysis ; organophosphorus pesticides ; pesticide residues ; Pesticide Residues - analysis ; Pesticides ; Quantitative ; quantitative analysis ; Reference Standards ; Reproducibility of Results ; Solid Phase Extraction ; Solutions ; Tea ; tea (beverage) ; Tea - chemistry ; Technology application ; Testing ; Thin layer chromatography</subject><ispartof>Journal of AOAC International, 2008-09, Vol.91 (5), p.1210-1217</ispartof><rights>COPYRIGHT 2008 Oxford University Press</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c399t-9d7dd35f652f5144397d7f7c0434ed0d0a4f978d6ea0c1fd53f5256b07415fe23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18980143$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yue, Yongde</creatorcontrib><creatorcontrib>Zhang, Rong</creatorcontrib><creatorcontrib>Fan, Wei</creatorcontrib><creatorcontrib>Tang, Feng</creatorcontrib><title>High-Performance Thin-Layer Chromatographic Analysis of Selected Organophosphorous Pesticide Residues in Tea</title><title>Journal of AOAC International</title><addtitle>J AOAC Int</addtitle><description>The separation of 9 organophosphates (monocrotophos, quinalphos, triazophos, parathion-methyl, isofenphos-methyl, temephos, parathion, phoxim-ethyl, and chlorpyrifos) by high-performance thin-layer chromatography (HPTLC) with automated multiple development was studied. The HPTLC method was developed and validated for analysis of residues of phoxim-ethyl and chlorpyrifos in tea. The sample was extracted with acetonitrile and cleaned up by ENVI-CARB solid-phase extraction. The extract was directly applied as bands to glass-backed silica gel 60F254 HPTLC plates. The plates were developed with dichloromethane–hexane (1 + 1, v/v) in a glass twin-trough chamber. Evaluation of the developed HPTLC plates was performed densitometrically. The results indicated that the detection limits of phoxim and chlorpyrifos were 5.0 x 10-9 and 1.0 x 10-8 g, respectively. Recoveries of the pesticides from tea by this analytical method were 90.7-105.5%, and relative standard deviations were 7.3-13.5%. The precision and accuracy of the method were generally satisfactory for analysis of pesticide residues in tea.</description><subject>accuracy</subject><subject>Calibration</subject><subject>Chemical properties</subject><subject>Chemistry, Analytic</subject><subject>Chromatography, Thin Layer</subject><subject>Composition</subject><subject>Densitometry</subject><subject>environmental fate</subject><subject>Indicators and Reagents</subject><subject>Methods</subject><subject>Organophosphorus Compounds - analysis</subject><subject>organophosphorus pesticides</subject><subject>pesticide residues</subject><subject>Pesticide Residues - analysis</subject><subject>Pesticides</subject><subject>Quantitative</subject><subject>quantitative analysis</subject><subject>Reference Standards</subject><subject>Reproducibility of Results</subject><subject>Solid Phase Extraction</subject><subject>Solutions</subject><subject>Tea</subject><subject>tea (beverage)</subject><subject>Tea - chemistry</subject><subject>Technology application</subject><subject>Testing</subject><subject>Thin layer chromatography</subject><issn>1060-3271</issn><issn>1944-7922</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkE1r4zAQhsWyZfu15721-gNORl92dAxhuy0EWtr0LFRpZKvYVpCcQ_593U2hDMMMw_PM4SXkD4MFAy2W7zZZt9RsoRaMM_hBLpiWsmo05z_nHWqoBG_YObks5R1Ashr4L3LOVnoFTIoL0t_HtqueMIeUBzs6pLsujtXWHjHTTZfTYKfUZrvvoqPr0fbHEgtNgb5gj25CTx9za8e071KZO6dDoU9YpuiiR_qMJfoDFhpHukN7Tc6C7Qv-_ppX5PXu725zX20f_z1s1tvKCa2nSvvGe6FCrXhQTEqhG9-ExoEUEj14sDLoZuVrtOBY8EoExVX9Bo1kKiAXV2Rx-tvaHk0cQ5qydXN5HKJLI4Y439ecc-BKaz0Ly5PgciolYzD7HAebj4aB-Qza_A_aaGaU-Qx6Nm5Oxv7wNqD_5r-SnYHbExBsMrbNsZjXFw5MAFsJXc_IB9WwhHc</recordid><startdate>20080901</startdate><enddate>20080901</enddate><creator>Yue, Yongde</creator><creator>Zhang, Rong</creator><creator>Fan, Wei</creator><creator>Tang, Feng</creator><general>Oxford University Press</general><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20080901</creationdate><title>High-Performance Thin-Layer Chromatographic Analysis of Selected Organophosphorous Pesticide Residues in Tea</title><author>Yue, Yongde ; Zhang, Rong ; Fan, Wei ; Tang, Feng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c399t-9d7dd35f652f5144397d7f7c0434ed0d0a4f978d6ea0c1fd53f5256b07415fe23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>accuracy</topic><topic>Calibration</topic><topic>Chemical properties</topic><topic>Chemistry, Analytic</topic><topic>Chromatography, Thin Layer</topic><topic>Composition</topic><topic>Densitometry</topic><topic>environmental fate</topic><topic>Indicators and Reagents</topic><topic>Methods</topic><topic>Organophosphorus Compounds - analysis</topic><topic>organophosphorus pesticides</topic><topic>pesticide residues</topic><topic>Pesticide Residues - analysis</topic><topic>Pesticides</topic><topic>Quantitative</topic><topic>quantitative analysis</topic><topic>Reference Standards</topic><topic>Reproducibility of Results</topic><topic>Solid Phase Extraction</topic><topic>Solutions</topic><topic>Tea</topic><topic>tea (beverage)</topic><topic>Tea - chemistry</topic><topic>Technology application</topic><topic>Testing</topic><topic>Thin layer chromatography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yue, Yongde</creatorcontrib><creatorcontrib>Zhang, Rong</creatorcontrib><creatorcontrib>Fan, Wei</creatorcontrib><creatorcontrib>Tang, Feng</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Journal of AOAC International</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yue, Yongde</au><au>Zhang, Rong</au><au>Fan, Wei</au><au>Tang, Feng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-Performance Thin-Layer Chromatographic Analysis of Selected Organophosphorous Pesticide Residues in Tea</atitle><jtitle>Journal of AOAC International</jtitle><addtitle>J AOAC Int</addtitle><date>2008-09-01</date><risdate>2008</risdate><volume>91</volume><issue>5</issue><spage>1210</spage><epage>1217</epage><pages>1210-1217</pages><issn>1060-3271</issn><eissn>1944-7922</eissn><abstract>The separation of 9 organophosphates (monocrotophos, quinalphos, triazophos, parathion-methyl, isofenphos-methyl, temephos, parathion, phoxim-ethyl, and chlorpyrifos) by high-performance thin-layer chromatography (HPTLC) with automated multiple development was studied. The HPTLC method was developed and validated for analysis of residues of phoxim-ethyl and chlorpyrifos in tea. The sample was extracted with acetonitrile and cleaned up by ENVI-CARB solid-phase extraction. The extract was directly applied as bands to glass-backed silica gel 60F254 HPTLC plates. The plates were developed with dichloromethane–hexane (1 + 1, v/v) in a glass twin-trough chamber. Evaluation of the developed HPTLC plates was performed densitometrically. The results indicated that the detection limits of phoxim and chlorpyrifos were 5.0 x 10-9 and 1.0 x 10-8 g, respectively. Recoveries of the pesticides from tea by this analytical method were 90.7-105.5%, and relative standard deviations were 7.3-13.5%. The precision and accuracy of the method were generally satisfactory for analysis of pesticide residues in tea.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>18980143</pmid><doi>10.1093/jaoac/91.5.1210</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | accuracy Calibration Chemical properties Chemistry, Analytic Chromatography, Thin Layer Composition Densitometry environmental fate Indicators and Reagents Methods Organophosphorus Compounds - analysis organophosphorus pesticides pesticide residues Pesticide Residues - analysis Pesticides Quantitative quantitative analysis Reference Standards Reproducibility of Results Solid Phase Extraction Solutions Tea tea (beverage) Tea - chemistry Technology application Testing Thin layer chromatography |
| title | High-Performance Thin-Layer Chromatographic Analysis of Selected Organophosphorous Pesticide Residues in Tea |
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