Staining solution reagent P.A.S.

for histologyfor cytology

Minimum number of tests that can be performed 100 Completion time 45 minutes Shelf life 1 year Storage conditions 2-8°C Additional equipment Not required Application Method indicated for simultaneous highlighting of neutral mucopolysaccharides and connective tissue on tissue sections. Result PAS-positive substances magenta red Connective tissue blue – green Muscle, stratum corneum of the epithelium, glia fibers and erythrocytes yellow – green Product for the préparation of cyto-histological samples for optical microscopy. For the démonstration of tissue components characterised by adjacent glycol or aminohydroxylic groupings and connective tissue. PRINCIPLE The method associâtes to one reaction P.A.S. a contrast that is taken advantage of the metachromatic property of the indigo carminé, that is an anionic stain and its metachromasy is due to the isoelectric point and the pH of the chromotropic element; the dyeing property of picric acid add to these (érythrocyte).