Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola
An evaluation of the pesticides extraction from onion using a modern sample preparation method (QuEChERS) and determination by liquid chromatography tandem mass spectrometry was carried out. All the calibration curves showed r>0.99. The recoveries ranged between 61.8 and 120.0% with relative standard deviation lower than 20% for all compounds. Due to the occurrence of matrix effect, the quantification was performed using matrix-matched calibration. The limits of quantification of the method were between 0.0005 and 0.05 mg kg-1. The method shows the advantages of not require the clean-up step and consume low volume of organic solvents, decreasing time, costs and residues.
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Sociedade Brasileira de Química
2011
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oai:scielo:S0100-404220110005000102011-07-18Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebolaRodrigues,Sherol AcostaCaldas,Sergiane SouzaFurlong,Eliana BadialePrimel,Ednei GilbertoZanella,Renato pesticides QuEChERS LC-ESI-MS/MS An evaluation of the pesticides extraction from onion using a modern sample preparation method (QuEChERS) and determination by liquid chromatography tandem mass spectrometry was carried out. All the calibration curves showed r>0.99. The recoveries ranged between 61.8 and 120.0% with relative standard deviation lower than 20% for all compounds. Due to the occurrence of matrix effect, the quantification was performed using matrix-matched calibration. The limits of quantification of the method were between 0.0005 and 0.05 mg kg-1. The method shows the advantages of not require the clean-up step and consume low volume of organic solvents, decreasing time, costs and residues.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaQuímica Nova v.34 n.5 20112011-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000500010pt10.1590/S0100-40422011000500010 |
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Rodrigues,Sherol Acosta Caldas,Sergiane Souza Furlong,Eliana Badiale Primel,Ednei Gilberto Zanella,Renato |
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Rodrigues,Sherol Acosta Caldas,Sergiane Souza Furlong,Eliana Badiale Primel,Ednei Gilberto Zanella,Renato Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| author_facet |
Rodrigues,Sherol Acosta Caldas,Sergiane Souza Furlong,Eliana Badiale Primel,Ednei Gilberto Zanella,Renato |
| author_sort |
Rodrigues,Sherol Acosta |
| title |
Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| title_short |
Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| title_full |
Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| title_fullStr |
Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| title_full_unstemmed |
Otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| title_sort |
otimização e validação de método empregando quechers modificado e lc-esi-ms/ms para determinação de agrotóxicos em cebola |
| description |
An evaluation of the pesticides extraction from onion using a modern sample preparation method (QuEChERS) and determination by liquid chromatography tandem mass spectrometry was carried out. All the calibration curves showed r>0.99. The recoveries ranged between 61.8 and 120.0% with relative standard deviation lower than 20% for all compounds. Due to the occurrence of matrix effect, the quantification was performed using matrix-matched calibration. The limits of quantification of the method were between 0.0005 and 0.05 mg kg-1. The method shows the advantages of not require the clean-up step and consume low volume of organic solvents, decreasing time, costs and residues. |
| publisher |
Sociedade Brasileira de Química |
| publishDate |
2011 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000500010 |
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