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phosphotungstic acid

   Also found in: Medical, Wikipedia 0.03 sec.
phosphotungstic acid [¦fä·sfō′təŋ·stik ′as·əd]
(inorganic chemistry)
H3PO4·12WO3·xH2O Heavy-greenish, water- and alcohol-soluble crystals; used as an analytical reagent and in the manufacture of organic pigments. Also known as heavy acid; phosphowolframic acid; PTA.


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Cytoplasmic cross-striations are difficult to identify on routine hematoxylin and eosin sections but can be identified in some cases with a phosphotungstic acid hematoxylin.
Rhabdomyoma of the larynx: case report and clinical and pathologic ... by Shapshay, Stanley M. / Ear, Nose and Throat Journal
Because aqueous uranyl acetate and phosphotungstic acid differ in staining properties, both stains should be applied in parallel in case of unknown samples.
Electron microscopy for rapid diagnosis of infectious agents in ... by Gelderblom, Hans R. / Emerging Infectious Diseases
22) They also stain with Giemsa (figure 2) and Mallory's phosphotungstic acid stain.
Charcot-Leyden crystals: pathology and diagnostic utility by Balogh, Karoly / Ear, Nose and Throat Journal
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