Measurement Uncertainty Associated with Sample Processing of Oranges and Tomatoes for Pesticide Residue Analysis
The homogeneity of analytical samples and the stability of pesticides during the sample processing of oranges and tomatoes were evaluated. The mean concentrations of 14C-labeled chlorpyrifos in analytical portions (subsamples) after processing show that homogeneity is dependent on sample type as wel...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2007-02, Vol.55 (4), p.1062-1070 |
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| container_title | Journal of agricultural and food chemistry |
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| creator | Fussell, Richard J Hetmanski, Michael T Macarthur, Roy Findlay, Dawn Smith, Frankie Ambrus, Árpad Brodesser, Peter Josef |
| description | The homogeneity of analytical samples and the stability of pesticides during the sample processing of oranges and tomatoes were evaluated. The mean concentrations of 14C-labeled chlorpyrifos in analytical portions (subsamples) after processing show that homogeneity is dependent on sample type as well as the processing procedure. The homogeneity of analytical samples of tomatoes processed cryogenically was much better than those processed at ambient temperature. For tomatoes, the minimum analytical portion masses required for between-analytical portion variation of 20%) during processing at ambient temperature. For these analytes, loss is interpreted as chemical degradation. Keywords: Homogeneity; oranges; pesticide stability; sample processing; tomatoes; uncertainty |
| doi_str_mv | 10.1021/jf0623743 |
| format | Article |
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The mean concentrations of 14C-labeled chlorpyrifos in analytical portions (subsamples) after processing show that homogeneity is dependent on sample type as well as the processing procedure. The homogeneity of analytical samples of tomatoes processed cryogenically was much better than those processed at ambient temperature. For tomatoes, the minimum analytical portion masses required for between-analytical portion variation of <0.3 Ho were 110 and 5 g for processing at ambient and cryogenic temperatures, respectively. Results for orange showed that analytical portion sizes of 5 g provided sufficient homogeneity from both sample processing procedures. Assessments of pesticide stability demonstrated that most were relatively stable during processing at either ambient or cryogenic temperatures. However, some pesticides, including dichlofluanid, chlorothalonil, tolylfluanid, and dicloran, appeared to suffer much greater losses (>20%) during processing at ambient temperature. For these analytes, loss is interpreted as chemical degradation. Keywords: Homogeneity; oranges; pesticide stability; sample processing; tomatoes; uncertainty</description><identifier>ISSN: 0021-8561</identifier><identifier>EISSN: 1520-5118</identifier><identifier>DOI: 10.1021/jf0623743</identifier><identifier>PMID: 17256954</identifier><identifier>CODEN: JAFCAU</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Biological and medical sciences ; chemical analysis ; chemical degradation ; Citrus sinensis - chemistry ; Drug Stability ; food contamination ; Food Handling - methods ; Food industries ; Freezing ; Fruit - chemistry ; Fruit and vegetable industries ; Fundamental and applied biological sciences. Psychology ; fungicide residues ; gas chromatography ; Gas Chromatography-Mass Spectrometry ; insecticide residues ; liquid scintillating spectrometry ; Lycopersicon esculentum - chemistry ; mass spectrometry ; oranges ; pesticide residues ; Pesticide Residues - analysis ; sample processing ; sample size ; sampling ; Sensitivity and Specificity ; spectroscopy ; tomatoes</subject><ispartof>Journal of agricultural and food chemistry, 2007-02, Vol.55 (4), p.1062-1070</ispartof><rights>Copyright © 2007 American Chemical Society</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a405t-f78d27254f33a3fce75485fa56387a1cf92ce1f2d223d404ed49abac7723c6173</citedby><cites>FETCH-LOGICAL-a405t-f78d27254f33a3fce75485fa56387a1cf92ce1f2d223d404ed49abac7723c6173</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/jf0623743$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/jf0623743$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2751,27055,27903,27904,56716,56766</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18553752$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17256954$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Fussell, Richard J</creatorcontrib><creatorcontrib>Hetmanski, Michael T</creatorcontrib><creatorcontrib>Macarthur, Roy</creatorcontrib><creatorcontrib>Findlay, Dawn</creatorcontrib><creatorcontrib>Smith, Frankie</creatorcontrib><creatorcontrib>Ambrus, Árpad</creatorcontrib><creatorcontrib>Brodesser, Peter Josef</creatorcontrib><title>Measurement Uncertainty Associated with Sample Processing of Oranges and Tomatoes for Pesticide Residue Analysis</title><title>Journal of agricultural and food chemistry</title><addtitle>J. Agric. Food Chem</addtitle><description>The homogeneity of analytical samples and the stability of pesticides during the sample processing of oranges and tomatoes were evaluated. The mean concentrations of 14C-labeled chlorpyrifos in analytical portions (subsamples) after processing show that homogeneity is dependent on sample type as well as the processing procedure. The homogeneity of analytical samples of tomatoes processed cryogenically was much better than those processed at ambient temperature. For tomatoes, the minimum analytical portion masses required for between-analytical portion variation of <0.3 Ho were 110 and 5 g for processing at ambient and cryogenic temperatures, respectively. Results for orange showed that analytical portion sizes of 5 g provided sufficient homogeneity from both sample processing procedures. Assessments of pesticide stability demonstrated that most were relatively stable during processing at either ambient or cryogenic temperatures. However, some pesticides, including dichlofluanid, chlorothalonil, tolylfluanid, and dicloran, appeared to suffer much greater losses (>20%) during processing at ambient temperature. For these analytes, loss is interpreted as chemical degradation. Keywords: Homogeneity; oranges; pesticide stability; sample processing; tomatoes; uncertainty</description><subject>Biological and medical sciences</subject><subject>chemical analysis</subject><subject>chemical degradation</subject><subject>Citrus sinensis - chemistry</subject><subject>Drug Stability</subject><subject>food contamination</subject><subject>Food Handling - methods</subject><subject>Food industries</subject><subject>Freezing</subject><subject>Fruit - chemistry</subject><subject>Fruit and vegetable industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>fungicide residues</subject><subject>gas chromatography</subject><subject>Gas Chromatography-Mass Spectrometry</subject><subject>insecticide residues</subject><subject>liquid scintillating spectrometry</subject><subject>Lycopersicon esculentum - chemistry</subject><subject>mass spectrometry</subject><subject>oranges</subject><subject>pesticide residues</subject><subject>Pesticide Residues - analysis</subject><subject>sample processing</subject><subject>sample size</subject><subject>sampling</subject><subject>Sensitivity and Specificity</subject><subject>spectroscopy</subject><subject>tomatoes</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0E1vEzEQBmALgWgoHPgD4AsHDkv9sV7vHqOWj6qtGkgijtbUOw4O2d3IsxHk32OUqLn0NLLm0XjmZeytFJ-kUPJiHUSltC31MzaRRonCSFk_ZxORm0VtKnnGXhGthRC1seIlO5NWmaox5YRt7xBol7DDfuTL3mMaIfbjnk-JBh9hxJb_ieMvPoduu0E-S4NHotiv-BD4fYJ-hcShb_li6GAc8iMMic-Qxuhji_wHUmx3yKc9bPYU6TV7EWBD-OZYz9nyy-fF5bfi9v7r9eX0toBSmLEItm5V3rIMWoMOHq0paxPAVLq2IH1olEcZVKuUbktRYls28ADeWqV9Ja0-Zx8Pc30aiBIGt02xg7R3Urj_qbnH1LJ9d7Db3UOH7UkeY8rgwxEAediEfLaPdHK1MdoalV1xcJFG_PvYh_TbVTYLt5jN3d2V-Pm9uZGuyf79wQcYHKxSnrmcKyG1ELasa21PP4Mntx52KcdIT5zwD-O4mYg</recordid><startdate>20070221</startdate><enddate>20070221</enddate><creator>Fussell, Richard J</creator><creator>Hetmanski, Michael T</creator><creator>Macarthur, Roy</creator><creator>Findlay, Dawn</creator><creator>Smith, Frankie</creator><creator>Ambrus, Árpad</creator><creator>Brodesser, Peter Josef</creator><general>American Chemical Society</general><scope>FBQ</scope><scope>BSCLL</scope><scope>IQODW</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>20070221</creationdate><title>Measurement Uncertainty Associated with Sample Processing of Oranges and Tomatoes for Pesticide Residue Analysis</title><author>Fussell, Richard J ; Hetmanski, Michael T ; Macarthur, Roy ; Findlay, Dawn ; Smith, Frankie ; Ambrus, Árpad ; Brodesser, Peter Josef</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a405t-f78d27254f33a3fce75485fa56387a1cf92ce1f2d223d404ed49abac7723c6173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Biological and medical sciences</topic><topic>chemical analysis</topic><topic>chemical degradation</topic><topic>Citrus sinensis - chemistry</topic><topic>Drug Stability</topic><topic>food contamination</topic><topic>Food Handling - methods</topic><topic>Food industries</topic><topic>Freezing</topic><topic>Fruit - chemistry</topic><topic>Fruit and vegetable industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>fungicide residues</topic><topic>gas chromatography</topic><topic>Gas Chromatography-Mass Spectrometry</topic><topic>insecticide residues</topic><topic>liquid scintillating spectrometry</topic><topic>Lycopersicon esculentum - chemistry</topic><topic>mass spectrometry</topic><topic>oranges</topic><topic>pesticide residues</topic><topic>Pesticide Residues - analysis</topic><topic>sample processing</topic><topic>sample size</topic><topic>sampling</topic><topic>Sensitivity and Specificity</topic><topic>spectroscopy</topic><topic>tomatoes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fussell, Richard J</creatorcontrib><creatorcontrib>Hetmanski, Michael T</creatorcontrib><creatorcontrib>Macarthur, Roy</creatorcontrib><creatorcontrib>Findlay, Dawn</creatorcontrib><creatorcontrib>Smith, Frankie</creatorcontrib><creatorcontrib>Ambrus, Árpad</creatorcontrib><creatorcontrib>Brodesser, Peter Josef</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>Pascal-Francis</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 agricultural and food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fussell, Richard J</au><au>Hetmanski, Michael T</au><au>Macarthur, Roy</au><au>Findlay, Dawn</au><au>Smith, Frankie</au><au>Ambrus, Árpad</au><au>Brodesser, Peter Josef</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement Uncertainty Associated with Sample Processing of Oranges and Tomatoes for Pesticide Residue Analysis</atitle><jtitle>Journal of agricultural and food chemistry</jtitle><addtitle>J. Agric. Food Chem</addtitle><date>2007-02-21</date><risdate>2007</risdate><volume>55</volume><issue>4</issue><spage>1062</spage><epage>1070</epage><pages>1062-1070</pages><issn>0021-8561</issn><eissn>1520-5118</eissn><coden>JAFCAU</coden><abstract>The homogeneity of analytical samples and the stability of pesticides during the sample processing of oranges and tomatoes were evaluated. The mean concentrations of 14C-labeled chlorpyrifos in analytical portions (subsamples) after processing show that homogeneity is dependent on sample type as well as the processing procedure. The homogeneity of analytical samples of tomatoes processed cryogenically was much better than those processed at ambient temperature. For tomatoes, the minimum analytical portion masses required for between-analytical portion variation of <0.3 Ho were 110 and 5 g for processing at ambient and cryogenic temperatures, respectively. Results for orange showed that analytical portion sizes of 5 g provided sufficient homogeneity from both sample processing procedures. Assessments of pesticide stability demonstrated that most were relatively stable during processing at either ambient or cryogenic temperatures. However, some pesticides, including dichlofluanid, chlorothalonil, tolylfluanid, and dicloran, appeared to suffer much greater losses (>20%) during processing at ambient temperature. For these analytes, loss is interpreted as chemical degradation. Keywords: Homogeneity; oranges; pesticide stability; sample processing; tomatoes; uncertainty</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>17256954</pmid><doi>10.1021/jf0623743</doi><tpages>9</tpages></addata></record> |
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| ispartof | Journal of agricultural and food chemistry, 2007-02, Vol.55 (4), p.1062-1070 |
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| subjects | Biological and medical sciences chemical analysis chemical degradation Citrus sinensis - chemistry Drug Stability food contamination Food Handling - methods Food industries Freezing Fruit - chemistry Fruit and vegetable industries Fundamental and applied biological sciences. Psychology fungicide residues gas chromatography Gas Chromatography-Mass Spectrometry insecticide residues liquid scintillating spectrometry Lycopersicon esculentum - chemistry mass spectrometry oranges pesticide residues Pesticide Residues - analysis sample processing sample size sampling Sensitivity and Specificity spectroscopy tomatoes |
| title | Measurement Uncertainty Associated with Sample Processing of Oranges and Tomatoes for Pesticide Residue Analysis |
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