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Abstract:

A method of analysis for residues of cyprodinil and fludioxonil in blueberries was developed. Fungicide residues were determined by solid-phase microextraction coupled to GC with nitrogen-phosphorous detection. The effect of pH values and fibre coatings was studied. The solid-phase microextraction fibre coating selected was 100 μm polydimethylsiloxane. The method was selective, with adequate precision and high accuracy and sensitivity. Apparent recoveries ranged within the 99-101% range for cyprodinil and the 98-100% range for fludioxonil; LODs and LOQs were 1.2 and 3.9 μg/kg for cyprodinil and 0.4 and 1.3 μg/kg for fludioxonil, respectively. Statistical parameters indicated a matrix effect; consequently, calibration was performed on spiked samples. Degradation of cyprodinil and fludioxonil was studied in a blueberry field located in Concordia (Argentina), with fruit from Emerald and Jewel varieties. The degradation of these fungicides in both blueberry varieties studied followed first-order rate kinetics for both fungicides, and the half-life for cyprodinil was 2.2 and 3.4 days for Emerald and Jewel cultivars, respectively, and for fludioxonil was 12.7 and 16.3 days, respectively. © 2013 Copyright Taylor & Francis.

Registro:

Documento: Artículo
Título:Method development and validation for cyprodinil and fludioxonil in blueberries by solid-phase microextraction gas chromatography, and their degradation kinetics
Autor:Munitz, M.S.; Resnik, S.L.; Montti, M.T.
Filiación:Facultad de Ciencias de la Alimentación, Universidad Nacional de Entre Ríos, Concordia, Argentina
Agencia Nacional de Promoción Científica y Tecnológica, CABA, Buenos Aires, Argentina
Facultad de Ciencias Exactas y Naturales, Departamentos de Química Orgánica e Industrias, Universidad de Buenos Aires, CABA, Buenos Aires, Argentina
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata, Argentina
Palabras clave:blueberries; cyprodinill; degradation kinetics; fludioxonil; SPME/GC; blueberries; cyprodinill; Degradation kinetics; Fludioxonil; SPME/GC; Coatings; Degradation; Fungicides; Gas chromatography; Gems; Plants (botany); Silicones; Kinetics; cyprodinil; dimeticone; fludioxonil; fungicide; unclassified drug; accuracy; Argentina; article; blueberry; calibration; cultivar; degradation kinetics; drug effect; drug half life; drug sensitivity; fruit; gas chromatography; half life time; limit of detection; limit of quantitation; nonhuman; pH; priority journal; sensitivity analysis; solid phase microextraction; validation process; varietas; waste component removal; Blueberry Plant; Chromatography, Gas; Dioxoles; Fungicides, Industrial; Hydrogen-Ion Concentration; Kinetics; Pyrimidines; Pyrroles; Solid Phase Microextraction; Vaccinium
Año:2013
Volumen:30
Número:7
Página de inicio:1299
Página de fin:1307
DOI: http://dx.doi.org/10.1080/19440049.2013.801085
Título revista:Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment
Título revista abreviado:Food Addit. Contam. Part A Chem. Anal. Control Exposure Risk Assess.
ISSN:19440049
CAS:cyprodinil, 121552-61-2; dimeticone, 32028-95-8, 68248-27-1, 9004-73-3, 9006-65-9; Dioxoles; Fungicides, Industrial; Pyrimidines; Pyrroles; cyprodinil, 42P6T6OFWZ; fludioxonil, ENS9J0YM16
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19440049_v30_n7_p1299_Munitz

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Citas:

---------- APA ----------
Munitz, M.S., Resnik, S.L. & Montti, M.T. (2013) . Method development and validation for cyprodinil and fludioxonil in blueberries by solid-phase microextraction gas chromatography, and their degradation kinetics. Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment, 30(7), 1299-1307.
http://dx.doi.org/10.1080/19440049.2013.801085
---------- CHICAGO ----------
Munitz, M.S., Resnik, S.L., Montti, M.T. "Method development and validation for cyprodinil and fludioxonil in blueberries by solid-phase microextraction gas chromatography, and their degradation kinetics" . Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment 30, no. 7 (2013) : 1299-1307.
http://dx.doi.org/10.1080/19440049.2013.801085
---------- MLA ----------
Munitz, M.S., Resnik, S.L., Montti, M.T. "Method development and validation for cyprodinil and fludioxonil in blueberries by solid-phase microextraction gas chromatography, and their degradation kinetics" . Food Additives and Contaminants - Part A Chemistry, Analysis, Control, Exposure and Risk Assessment, vol. 30, no. 7, 2013, pp. 1299-1307.
http://dx.doi.org/10.1080/19440049.2013.801085
---------- VANCOUVER ----------
Munitz, M.S., Resnik, S.L., Montti, M.T. Method development and validation for cyprodinil and fludioxonil in blueberries by solid-phase microextraction gas chromatography, and their degradation kinetics. Food Addit. Contam. Part A Chem. Anal. Control Exposure Risk Assess. 2013;30(7):1299-1307.
http://dx.doi.org/10.1080/19440049.2013.801085