The Histochemical Journal

, Volume 8, Issue 1, pp 71–75 | Cite as

Resistance of aldehyde blockades to periodic acid

  • Olga B. Bayliss
  • C. W. M. Adams


Densitometric studies on rat liver, myelin and intestinal mucin showed that, among eight groups of reagents tested, only phenylhydrazines and aniline-acetic acid reliably blockaded aldehydes in such a way as to be reasonably resistant to re-oxidation by periodic acid. It is proposed, therefore, that only these agents among those tested should be used to block pre-existing aldehydes before performing the PAS reaction.


Aldehyde Periodic Acid Phenylhydrazines Intestinal Mucin Densitometric Study 
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Copyright information

© Chapman and Hall Ltd 1976

Authors and Affiliations

  • Olga B. Bayliss
    • 1
  • C. W. M. Adams
    • 1
  1. 1.Department of PathologyGuy's Hospital Medical SchoolLondonUK

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