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Journal of Dairy Science Vol. 55 No. 1 39-41
© 1972 by American Dairy Science Association ®
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Arazate Method for Estimating Copper in Water1

A. C. Smith

Department of Animal Industries, University of Connecticut, Storrs 06268

ABSTRACT

A method using zinc dibenzyldithioearbamate (Arazate) for estimating copper in water was not significantly different from the Bathocuproine procedure. Repeatability trials at two levels of copper gave standard deviations of 0.001 and 0.002 ppm. Twelve samples with 0.1 and 0.2 ppm of added copper had recoveries of 93 to 104% and 93 to 103% with means of 100 and 99%. The presence of > 10 ppm of chlorine, however, interfered with the recovery of copper.

FOOTNOTES

1 Scientific Contribution 478, Connecticut Agricultural Experiment Station, University of Connecticut, Storrs.






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Copyright © 1972 by the American Dairy Science Association ®.