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 Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Bird, E. W. Articles by Chen, T. C. Search for Related Content PubMed Articles by Bird, E. W. Articles by Chen, T. C.

Determination of Calcium and Magnesium in Milk by E.D.T.A. Titration¹

Department of Dairy and Food Industry

C. P. Cox² and T. C. Chen³

Department of Statistics Iowa State University, Ames, Iowa

ABSTRACT

Five procedures were compared for E.D.T.A. determination of calcium and magnesium in milk. The method which combined Ling's method for removal of proteins and phosphates by potassium metastannate, Flashka's indicator (Eriochrome blue S E) for the calcium determination, his adjustment of pH in the magnesium determination, and the method of Jenness (slightly modified) for magnesium yielded the best results. The method is convenient, rapid, and recoveries for both calcium and magnesium were essentially 100%.

¹ Journal Paper No. J-3935 of the Iowa Agricultural Experiment Station, Ames, Project No. 1298.

² Visiting Professor from the National Institute for Research in Dairying, University of Reading, England.

³ Current address: C. D. Searle and Co., Division of Biological Research, Chicago, Ill.