The official AOAC spectrophotometric analytical method for amprolium in feeds (961.24) is quantitatively selective for the intact drug in the presence of its primary degradation products. Concentrations evaluated included mixtures of the individual degradates in the presence of amprolium,
as well as an equimolar mixture of the 2 degradates. Neither compound responds to the amprolium colorimetric derivatization reaction under any conditions, demonstrating that the official method can be used as an analytical technique for demonstrating the stability of amprolium in medicated
feeds. Additionally, liquid chromatography conditions have been established to resolve amprolium from its degradation products.
Document Type: Research Article
Merial Ltd., 631 US Route 1 South, North Brunswick, NJ 08902 2:
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Publication date: May 1, 2004
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The Journal of AOAC INTERNATIONAL publishes refereed papers and reviews in the fields of chemical, biological and toxicological analytical chemistry for the purpose of showcasing the most precise, accurate and sensitive methods for analysis of foods, food additives, supplements and contaminants, cosmetics, drugs, toxins, hazardous substances, pesticides, feeds, fertilizers and the environment available at that point in time. The scope of the Journal includes unpublished original research describing new analytical methods, techniques and applications; improved approaches to sampling, both in the field and the laboratory; better methods of preparing samples for analysis; collaborative studies substantiating the performance of a given method; statistical techniques for evaluating data. The Journal will also publish other articles of general interest to its audience, e.g., technical communications; cautionary notes; comments on techniques, apparatus, and reagents.