Colorimetric Determination of Pyruvic Acid with p-Dimethylaminobenzaldehyde

  title={Colorimetric Determination of Pyruvic Acid with p-Dimethylaminobenzaldehyde},
  author={Mitsuyoshi Kageura and Yosuke Ohkura and Tsutomu Momose},
A new colorimetric method for the determination of pyruvic acid is presented on the basis of a new color reaction of the acid with p-dimethylaminobenzaldehyde in dimethylsulfoxide solution in the presence of strong alkali. The method is selective for pyruvic acid among ketonic acids, but interfered by acetone, acetaldehyde, bilirubin, glucose, D-glucuronolactone and ascorbic acid. 

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