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Influência dos constituintes químicos dos extratos de diferentes matrizes na resposta cromatográfica de agrotóxicos

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dc.contributor.author Neves, Antônio Augusto
dc.contributor.author Queiroz, Maria Eliana L. R.
dc.contributor.author Starling, Maria Antônia V. M.
dc.contributor.author Pinho, Gevany Paulino de
dc.contributor.author Silvério, Flaviano Oliveira
dc.date.accessioned 2019-04-25T11:35:14Z
dc.date.available 2019-04-25T11:35:14Z
dc.date.issued 2010
dc.identifier.issn 1678-7064
dc.identifier.uri http://dx.doi.org/10.1590/S0100-40422010000400028
dc.identifier.uri http://www.locus.ufv.br/handle/123456789/24795
dc.description.abstract Multiresidue methods for pesticides monitoring by GC are commonly employed, however, it is well known that the presence of compounds of the matrix introduces errors during the quantiûcation. The main consequence of matrix effect is an increasing or decreasing analyte signal after the GC saturation with extracts of matrix. In this paper, the influence of constituents of nine matrices on the quantification of the four pesticides by GC-ECD was studied. Variation of signal was evaluated by PCA and HCA, and results showed that the constituents of tomato increased the signal (until 300%), while extracts of apple decreased (until -20%). Variation the analyte signal in the presence of the matrix in respect to the same analyte in solvent (standard solution) also was observed, mainly for liver extract (until 270%). en
dc.format pdf pt-BR
dc.language.iso por pt-BR
dc.publisher Química Nova pt-BR
dc.relation.ispartofseries v. 33, n. 4, p. 909-913, 2010 pt-BR
dc.rights Open Access pt-BR
dc.subject Matrix effect pt-BR
dc.subject Pesticides pt-BR
dc.subject PCA pt-BR
dc.title Influência dos constituintes químicos dos extratos de diferentes matrizes na resposta cromatográfica de agrotóxicos pt-BR
dc.type Artigo pt-BR


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  • Artigos [378]
    Artigos Técnico-científicos na área de Química

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