periodic acid


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Related to periodic acid: Periodic acid Schiff

periodic acid

[¦pir·ē¦äd·ik ′as·əd]
(inorganic chemistry)
HIO4·2H2O Water- and alcohol-soluble white crystals; loses water at 100°C; used as an oxidant.
References in periodicals archive ?
Periodic acid Schiff reaction (PAS).--Carbohydrate and glycoprotein deposits in sections of spider abdomens were localized by hydrolysis for 10 min in 0.5% periodic acid in distilled water, followed by a 10 min wash in running tap water and 15 min of staining in freshly prepared 1% Schiff reagent.
(b) Irregularity and patchy thickening of basement membrane (periodic acid shift x200).
The positive reactions of the adrenal capsule of the African giant rat with Masson's Trichrome, Periodic Acid Schiff and Verhoeff stain imply that the capsule is rich in collagen, carbohydrate and elastic fibers, respectively.
The specimens are rehydrated in 70% ethyl alcohol and then placed successively in periodic acid Schiff reagent, sodium metasulfite, Gill's haematoxylin, and Scott's tap water substitute for 2 minutes each, rinsing in two changes of tap water in between each step.
Grocott-Gomori's Methenamine Silver (GMS) and Periodic Acid Schiff (PAS).
All the Fungal balls received in the laboratory were subjected to Macroscopic examination, Potassium Hydroxide(KOH) wet mount, Lacto Phenol Cotton Blue(LPCB) mount, Histopathological examination (HPE) after Haematoxylin and Eosin (H&E) staining and Periodic Acid Schiff (PAS) staining, Culture and Radiological examination prior to surgery.
Special stains including Ziehl Neelsen, periodic acid Schiff and Gomori's methenamine silver were used where indicated.
The sections were coloured by Gomori's trichrome (1950), periodic acid-Schiff (PAS) (McManus, 1948; Bancroft & Cook), Alcian Blue Ph 2.5 and Ph1.0 (Pearse, 1985; Bancroft & Cook), Acetylation + PAS (Pearse), acetylation + deacetylation + PAS (Pearse), acid hydrolysis + PAS (Quintarelli, 1961), periodic acid + phenylhydrazine + Schiff reagent (Bancroft & Cook), periodic acid + thiosemicarbazide + Schiff reagent (Pearse; Bancroft & Cook) and observed in an Olympus BH-2 optical microscope.
[4] They show periodic acid Schiff, cytokeratin, and HER2/neu positivity, [4] and ER, [4] PR, [4] and p63 negativity.
The Cellular Pathology Department of South Devon NHS Foundation Trust has a requirement to replace it~s existing separate stainer and separate coverslipper with an integrated system capable of performing the existing repertoire of stains which are Haeamtoxylin and Eosin (H&E), Papanicolaou (PAP), Alcian blue Periodic Acid Schiff (ABP), Periodic Acid Schiff (PAS) and a modified Giemsa for helicobacter within the one unit.

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