Histological demonstration of mucin after periodic acid.

TLDR: The histological demonstration of mucin by Schiff's reagent following the action of periodic acid is described, as for the Feulgen's test.

Abstract: THIS note describes the histological demonstration of mucin by Schiff's reagent following the action of periodic acid. Zenker-formol sections were passed to water, after iodine and hypo, and placed for two minutes in a 0.5 per cent solution of periodic acid in distilled water. The sections were then washed in tap and distilled water and placed in Schiff's reagent for fifteen minutes at room temperature. The customary rinsings in sulphurous acid, as for the Feulgen's test, followed, and the sections were dehydrated in alcohols and mounted in balsam after xylene.