Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 391, Issue 3, Pages 867-872Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-008-2058-0
Keywords
matrix solid-phase dispersion; capillary electrophoresis; electrochemical detection; amitrole; urazole
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A new method based on matrix solid-phase dispersion (MSPD) extraction was studied for the extraction of amitrole (3-amino-1,2,4-triazole), and its metabolite urazole (3,5-dihydroxy-1,2,4-triazole), in apple samples. The influence of experimental conditions on the yield of the extraction process and on the efficiency of the cleanup step was evaluated. Determination was carried out by capillary electrophoresis (CE) with electrochemical detection, demonstrating the compatibility between MSPD and CE techniques. The method has been successfully applied to different apple varieties. Recoveries in samples spiked at 1.6 and 1.7 mu g g(-1) for amitrole and urazole were 88 and 82%, respectively. The limits of detection were 0.4 mu g g(-1) for both compounds using electrochemical detection.
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