Determination of cymiazole residues in honey by liquid chromatography
Cabras, P.; Melis, M.; Spanedda, L.
Journal - Association of Official Analytical Chemists 76(1): 92-94
1993
ISSN/ISBN: 0004-5756 PMID: 8448449 Document Number: 415947
A liquid chromatographic method is described for the determination of cymiazole residues in honey. This acaricide is determined on a reversed-phase (C-18) column, with a CH-3CN-0.001N HCl-NaCl mixture (950 mL + 50 mL + 0.3 g/L) as the mobile phase, and UV detection at 265 nm. Cymiazole is extracted with n-hexane from aqueous alkalinized (pH 9) honey solutions. No further cleanup of the honey extact was require before chromatographic analysis. Recoveries on control samples fortified with 0.01, 0.10, and 1.00 ppm cymiazole ranged from 92 to 102%. The limit of determination was 0.01 ppm.