Colorimetric urea determination in presence of long hydrocarbon chain amidobetaine
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United States of America Patent
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Nov 2, 1982
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N/A
app pub date -
Aug 14, 1981
filing date -
Aug 14, 1981
priority date (Note) -
Expired
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Abstract
A colorimetric urea determination method, reagent, and reagent kit useful in end point and kinetic urea determination. Urea in a liquid sample reacts with o-phthalaldehyde and chromotropic acid or one of its salts in the presence of a linear long hydrocarbon chain amidobetaine to produce an intensely colored reaction product, the concentration of which is linearly related to the urea concentration in the sample.
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