Abstract We investigated factors affecting sensitivity and reproducibility of radioenzymic (catechol-O-methyltransferase) measurement of plasma catecholamines. There was no apparent deterioration of catecholamine during storage at -20 degrees C for 240 days. Accuracy and sensitivity of the assay depended mostly on the method of transferase preparation; its preparation by adjusting the pH to 6.8 before fractionation with ammonium sulfate resulted in an unsuitable enzyme with a relatively high background-radioactivity count, particularly for neorepinephrine and dopamine. © 1981 The American Association for Clinical Chemistry « Previous | Next Article » Table of Contents This Article Clinical Chemistry April 1981 vol. 27 no. 4 626-628 » Abstract PDF Services Email this article to a friend Alert me when this article is cited Alert me if a correction is posted Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Download to citation manager Responses No responses published Citing Articles Load citing article information Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Saar, N. Articles by Gordon, R. D. Search for related content PubMed PubMed citation Articles by Saar, N. Articles by Gordon, R. D. Related Content Load related web page information Follow Us Clinical Chemistry Trainee Council Register Today! www.traineecouncil.org Information for Authors Submit a Manuscript Editorial Board Clinical Case Studies Clinical Chemistry Guide to Scientific Writing Journal Club Podcasts Translated Content Annual Meeting Abstracts Permissions and Reprints Advertising Copyright © 2012 by the American Association for Clinical Chemistry
Clinical Chemistry – American Association for Clinical Chemistry
Published: Apr 1, 1981
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