Determination of buprofezin, pyridaben, and tebufenpyrad residues by gas chromatography mass-selective detection in clementine citrus
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Data
1998-10-01
Autores
Cabras, P.
Angioni, A.
Garau, V. L.
Melis, M.
Pirisi, F. M.
Cabitza, F.
Dedola, F.
Navickiene, S.
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ISSN da Revista
Título de Volume
Editor
Amer Chemical Soc
Resumo
A gas chromatography-mass-selective (GC-MS) detection method to determine buprofezin, pyridaben, and tebufenpyrad on the pulp, peel, and whole fruit of clementines is described. The extraction/partition procedure was performed in one step and no cleanup was necessary with the GC-MS in the SIM-mode pesticide determination. Recovery ranged from 75 to 124% with coefficients of variance ranging between 1 and 13%. The limit of determination was 0.01 mg/kg for all pesticides. The field trials showed a similar degradative behavior for all active ingredients (AI), with a great residue decrease during the first week and stability in the second. Just after treatment buprofezin and tebufenpyrad showed lower residues than the maximum residue limit (MRL) fixed in Italy, while pyridaben was below the MRL after a week.
Descrição
Palavras-chave
residues, GC-MS, buprofezin, pyridaben, tebufenpyrad, clementine
Como citar
Journal of Agricultural and Food Chemistry. Washington: Amer Chemical Soc, v. 46, n. 10, p. 4255-4259, 1998.