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Clinical Chemistry, Vol 16, 144-146, Copyright © 1970 by the American Association for Clinical Chemistry
1 Biomedical Engineering and Instrumentation Branch,
Division of Research Services, NIH, USPHS, Bethesda, Md.
20014.
Carbonate is determined in serum by infrared absorption measurement of the carbon dioxide evolved upon acidification. The determination requires 1 min and a 50-µl sample. The method has a coefficient of variation of 2.0% for samples in the normal range.
Accepted on December 9, 1969
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