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Clinical Chemistry, Vol 13, 423-425, Copyright © 1967 by the American Association for Clinical Chemistry
1 Department of Pathology, Division of Clinical Pathology, University of Alberta, Edmonton, Canada.
The Gilford Absorbance Indicator was recalibrated, for absolute absorbance readings, with (1) a U. S. Bureau of Standards calibrated cobalt-blue glass standard; (2) a standard cobalt ammonium sulfate solution at 512 mµ (3) standard potassium chromate solutions at 373 mµ These three standards agreed with 1%. Readings on the indicator's absorbance scale had decreased by about 7% over 2 years.
Submitted on September 26, 1966
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