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A modified azoalbumin technique for the assay of proteolytic enzymes for use in blood group serology.
  1. P K Phillips,
  2. D Prior,
  3. B Dawes


    A spectrophotometric assay of proteolytic enzyme activity is described in which the optical density obtained by a given enzyme preparation is related (2 alpha less than 0.01) to the serological activity of that preparation in a two stage technique. The assay appears to be of use for the standardisation of enzyme preparations for use in blood group serology.

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