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VIEW ARTICLE DOI: 10.1094/ASBCJ-47-0091
Microwave Digestion of Brewing Materials. Stephen L. McCarthy, The Technical Center, Anheuser-Busch, Inc., One Busch Place, St. Louis, MO 63118. J. Am. Soc. Brew. Chem. 47:0091, 1989.
A Teflon high-pressure vessel and concentrated nitric acid were used to digest solid brewing samples in a conventional microwave oven. After digestion, the sample solutions were analyzed for trace elements by inductively coupled plasma spectrometry. The method validation showed that elements Ca, Cu, Fe, K, Mg, Mn, Na, and Zn could be run successfully by this method. Results on Si were unsatisfactory.
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A subscription to the Journal of the American Society of Brewing Chemists is complimentary with membership to the ASBC. The ASBC Journal publishes scientific papers, review articles, and technical reports dealing with the chemistry and microbiology of brewing ingredients and relevant technology, as well as the analytical techniques used in the malting and brewing industry. |