Abstract

A liquid chromatographic method with photometric detection was developed and validated for the determination of 5-dodecylsalicylaldoxime in the industrial extractants LIX 622 and LIX 860 and 5-nonylsalicylaldoxime in LIX 622N, Acorga PT5050 and Acorga P5100. The limit of detection was 2.18 μg/ml for 5-dodecylsalicylaldoxime and 2.06 μg/ml for 5-nonylsalicylaldoxime. Good linear relations between the areas and the concentration of the standard injected were found in the range of 5–100 μg/ml and reproducibility studies yielded relative standard deviations lower than 6.12% in all the cases.

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