phosphotungstic acid


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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.

phosphotungstic acid (PTA),

n a mixture of phosphoric and tungstic acids used with hematoxylin for staining muscle tissue and cell nuclei. It is also used as a negative stain of collagen in electron microscopy.
References in periodicals archive ?
Methods using phosphotungstic acid (42) or polyethylene glycol (47) became more common in Europe.
The phosphotungstic acid procedures (Table 4) have been described with and without Mg[Cl.
4] was then added and mixed gently, after which 125 [micro]L of 100 g/L phosphotungstic acid was added and vortex-mixed.
Briefly, 50 [micro]L of reagent I (80 g/L phosphotungstic acid and 10 mmol/L EDTA in 0.
44 mmol/L phosphotungstic acid and 20 mmol/L Mg[Cl.
In the PTA assay, the samples were mixed with a precipitating solution containing phosphotungstic acid and Mg[Cl.
Most frequently, HDL-C is measured in the supernatant after precipitation of apolipoprotein (apo) B-containing lipoproteins by dextran sulfate or phosphotungstic acid (PTA)/Mg[Cl.
Each procedure is representative of one of the three HDL-C assay generations: a phosphotungstic acid (PT)/[Mg.

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