HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Stroup, W. H. Articles by Dickerson, R. W. Search for Related Content PubMed PubMed Citation Articles by Stroup, W. H. Articles by Dickerson, R. W., Jr.

Combined Process for Removing Radioactive Iodine and Strontium from Milk by Ion Exchange

National Center for Urban and Industrial Health, Food Protection Research, Cincinnati, Ohio

ABSTRACT

Milk labeled in vitro containing iodine-131 and strontium-85 was passed through an anionic resin (fixed-bed contactor) in a chloride:phosphate:citrate: cycle, acidified to pH 5.3 with citric acid, and passed through a cationic resin (pulsed-bed contactor) in a calcium:magnesium:potassinm:sodium: cycle. To acidify the milk, a metering system was developed, which maintained the pH of the milk between 5.25 and 5.40 during a 20-hr run. Analyses of the treated milk indicated that approximately 97% of the iodine-131 and 95% of the strontium-85 were removed. The anionic and cationic salt compositions and the microbiological flora of the milk were not significantly altered by resin treatment. Protein stability analyses indicated that the acidification caused some protein precipitation, while the flavor quality was acceptable provided the first 5% of the treated milk was discarded.