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Abstract
AbstractA novel titrimetric procedure has been developed for the determination of FFA in edible oils using an automated thermometric titration with KOH in isopropanol as titrant. The end point is indicated by the strongly exothermic base‐catalyzed reaction between acetone and chloroform. The procedure is fast, easy to use, accurate, and highly reproducible. Analytical precisions (as one SD) in the range 0.001–0.003% w/w (as oleic acid) for new and used cooking oils were obtained. It is very suitable for the routine process and quality control of new and used oils in commercial frying operations, among other applications.
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