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Clinical Chemistry 3: 691-695, 1957;
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Clinical Chemistry, Vol 3, 691-695, Copyright © 1957 by the American Association for Clinical Chemistry

A Simple Turbidimetric Method of Estimating Blood Urea

Hubert Lawrie 1

1 Central Pathological Laboratory, Salus Street, Burnley, Lancashire, England.

A rapid turbid metric method has been described for estimating urea in serum, plasma, or protein-free filtrate. The method uses a xanthydrol reagent and 50% acetic acid, and measurement of the degree of turbidity produced in 15 minutes in a colorimeter using a red filter. Blood urea values of 100 mg. per 100 ml. and over are indicated, clearly, in less than 1 minute.

Submitted on February 27, 1957






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Copyright © 1957 by the American Association for Clinical Chemistry.