- in detail it has been shown that susceptibility resp . resistance of the pas-positive material against treatment with diastase resp . amylase is highly dependent on both type of fixation and fixation time : fixation with formol free absolute alcohol ( ethanol , methanol ) , leads also after prolonged fixation time to a complete loss of pas-staining after preliminary treatment with diastase resp . amylase .
C0001962
ethanol
C0001963
methanol