Comparison of an HPTLC and an HPLC procedure for the determination of chlorpropham, propham and thiabendazole residues in potatoes

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Abstract
HPTLC was used to check for residues of chlorpropham, propham (sprout inhibitors) and thiabendazole (fungicide) applied to potatoes. The method used gave good precision and analytical sensitivity. The sample preparation method developed by the authors was simple and gave good recovery and selectivity as far as other components of the matrix were concerned. Comparison with liquid chromatography confirmed the validity of the results.