| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
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| PTAH | phosphotungstic acid hematoxylin |
| EPTA | Ethanolic phosphotungstic acid |
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| PTA | Phosphotungstic acid |
| PTAH | Phosphotungstic acid hematoxylin |
| phosphotungstic acid | <chemical> Tungsten hydroxide oxide phosphate. A white or slightly yellowish-green, slightly efflorescent crystal or crystalline powder. It is used as a reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, and carbohydrates. Chemical name: Tungsten hydroxide oxide phosphate (12 Dec 1998) |
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| phosphotungstic acid haematoxylin | A stain with broad application in cytology and histology; nuclei, mitochrondria, fibrin, neuroglial fibrils, and cross-striations of skeletal and cardiac muscle stain blue; cartilage ground substance, bone reticulum, and elastin appear in shades of yellow-orange and brownish red; also useful for demonstrating abnormal or diseased astrocytes, often in combination with periodic acid-Schiff stain and Luxol fast blue. Synonym: Mallory's phosphotungstic acid haematoxylin stain. (05 Mar 2000) |
| phosphotungstic acid stain | <technique> The first general stain used for electron microscopy; a selective stain for extracellular components such as elastin, collagen, and basement membrane mucopolysaccharides; it can be followed by uranyl acetate or lead. Synonym: PTA stain. (05 Mar 2000) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
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| Mallory's phosphotungstic acid haematoxylin stain | A stain with broad application in cytology and histology; nuclei, mitochrondria, fibrin, neuroglial fibrils, and cross-striations of skeletal and cardiac muscle stain blue; cartilage ground substance, bone reticulum, and elastin appear in shades of yellow-orange and brownish red; also useful for demonstrating abnormal or diseased astrocytes, often in combination with periodic acid-Schiff stain and Luxol fast blue. Synonym: Mallory's phosphotungstic acid haematoxylin stain. (05 Mar 2000) |
Synonyms : Acid, Phosphotungstic
| phosphotungstic acid |
a strong acid and oxidizing agent used as a protein precipitant and color reagent; alkaloids, nitrogenous bases, and other substances reduce phosphotungstic acid to tungsten blue. It is also used in histology as a mordant for hematoxylin and other dyes.
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| phosphotungstic acidhematoxylin s. |
see Mallory's phosphotungstic acidhematoxylin s.
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