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Glc multiresidue analysis of postharvest fungicides in citrus fruit


, : Glc multiresidue analysis of postharvest fungicides in citrus fruit. Fresenius Zeitschrift fuer Analytische Chemie 328(1-2): 105-107

A simple GLC multiresidue method for the analysis of fenpropimorph, thiabendazole, imazalil, propiconazole and prochloraz residues in citrus fruit, with a limit of detection of 0.1 ppm, is reported. The fungicides are extracted with hexane: ethyl acetate (90:10, v/v) after pH-adjustment of the fruit homogenate. The GLC-separation is carried out using a bonded phase, SE-54, fused silica capillary column and fungicides are determined with a nitrogen-phosphorus detector. Recovery was always higher than 80% with standard deviation equal or lower than 7%. The method is suitable to determine residues in citrus, whole fruit or peel, treated with these fungicides at usual concentrations to avoid citrus decay.

US$19.90

DOI: 10.1007/bf00560960


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