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  • Title: Differential pulse polarographic determination of iodine in foods and nutritional products.
    Author: Thompson D, Lee S, Allen R.
    Journal: J Assoc Off Anal Chem; 1983 Nov; 66(6):1380-4. PubMed ID: 6643350.
    Abstract:
    A differential pulse polarographic procedure is described for the analysis of iodine in foods and nutritional products. Samples with iodine concentrations ranging from 5000 to 0.2 ppm have been successfully analyzed using this procedure. Precision averaged between 2 and 10% relative to the iodine level measured. Recoveries of added iodine ranged from 89 to 108% with external standards, and 97-100% by an analyte additions technique. Samples analyzed include dried almonds, whey protein concentrate, nonfat dried milk, sea kelp, vitamin-mineral nutritional supplements, diet meal replacement products, dried green beans, dried mushrooms, and wheat germ.
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