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- W1965748788 abstract "Neste trabalho propõe-se método rápido de procedimentos de extração e clean up para determinações do inseticida Metamidofós em amostras de soja. Análises de amostras de soja seca e hidratada, fortificadas em níveis de 5 µg g-1, apresentaram recuperação média de 93-94% e coeficiente de variação de 17 a 31% com os sistemas adsorvente alumina/florisil e eluente metanol/ acetonitrila 1:3. Testes empregando sílica 15% desativada também mostraram eficiência com recuperação final de, aproximadamente, 75% e coeficientes de variação entre 18 a 27%. Cromatogramas com mínima interferência, nenhum efeito de matriz e boa eficiência na extração foram obtidos com a aplicação do método proposto. METHAMIDOPHOS INSECTICIDE RESIDUE ANALYSIS IN SOYBEAN AND FINAL DETERMINATION BY GAS CHROMATOGRAPHY Abstract A rapid method for extraction and clean up procedures for methamidophos insecticide determinations in soybean samples is proposed in this work. Analyses of dried and natural soybean samples fortified at 5 µg g-1 level showed recoveries average of 93-94% and variation coefficient ranging from 17 to 31% by using 3:1 Alumina/Florisil adsorbent system combined with 1:3 methanol/acetonitrile as eluent system. Tests employing 15% deactivated silica also showed to be efficient with final recovery close to 75% and variation coefficients varying from 18 to 27%. Chromatograms with minimal interferences, no matrix effects and good extraction efficiencies were recorded after application of the proposed method." @default.
- W1965748788 created "2016-06-24" @default.
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- W1965748788 date "2003-12-31" @default.
- W1965748788 modified "2023-09-25" @default.
- W1965748788 title "ANÁLISE DE RESÍDUOS DO INSETICIDA METAMIDOFÓS EM SOJA E DETERMINAÇÃO FINAL POR CROMATOGRAFIA EM FASE GASOSA" @default.
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- W1965748788 doi "https://doi.org/10.5380/pes.v13i0.3169" @default.
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