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phosphotungstic acid
phosphotungstic acid[¦fä·sfō′təŋ·stik ′as·əd] (inorganic chemistry) H3PO4·12WO3· x H2O 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. phosphotungstic acid
phos·pho·tung·stic ac·id (PTA), (fos-fō-tŭng'stik as'id), A mixture of phosphoric and tungstic acids; a protein precipitant and reagent for arginine, lysine, histidine, and cystine; used with hematoxylin for nuclear and muscle staining; also used in electron microscopy as a stain for collagen and as a negative stain.phos·pho·tung·stic ac·id (PTA) (fos'fō-tŭng'stik as'id) A mixture of phosphoric and tungstic acids; a protein precipitant and reagent for arginine, lysine, histidine, and cystine; used with hematoxylin for nuclear and muscle staining; also used in electron microscopy as a stain for collagen and as a negative stain. phos·pho·tung·stic ac·id (PTA) (fos'fō-tŭng'stik as'id) A mixture of phosphoric and tungstic acids; a protein precipitant and reagent for arginine, lysine, histidine, and cystine; used with hematoxylin for nuclear and muscle staining; also used in electron microscopy as a stain for collagen and as a negative stain.AcronymsSeepoints-to analysis |