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)

phos·pho·tung·stic ac·id

(PTA) (fos'fō-tŭng'stik as'id)

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References in periodicals archive ?

The virus preparation was negative-stained with sodium phosphotungstate (original magnification *25,000).

Novel Orthopoxvirus and Lethal Disease in Cat, Italy

The blue coloured complex developed due to the reduction of phosphomolybdate and phosphotungstate by tyrosine residues of polypeptide was estimated spectrophotometrically at 680 nm.

Comparison of [alpha]1-antitrypsin, [alpha]1-acid glycoprotein, fibrinogen and NOx as indicator of subclinical mastitis in riverine buffalo (Bubalus bubalis)

Li et al., "Microwave radiation solidphase synthesis of phosphotungstate nanoparticle catalysts and photocatalytic degradation of formaldehyde," Journal of Molecular Catalysis A, vol.

Kinetic study on the [Cs.sub.X][H.sub.3-X] P[W.sub.12][O.sub.40]/Fe-Si[O.sub.2] nanocatalyst for biodiesel production

Estimation of HDL-C was done using magnesium chloride and sodium phosphotungstate to precipitate low density and very low-density lipoproteins, which were then removed by centrifugation at 3000rpm.

Evaluation of homocysteine, lipoprotein(a) and endothelin as diagnostic markers of coronary artery disease in Indian population

The precipitation reagent (sodium phosphotungstate with magnesium chloride) was added to the sera to aggregate non-HDL lipoproteins, which were then sedimented by centrifugation (10,000 g for 5 minutes).

Circulating Thyroid Hormones and Indices of Energy and Lipid Metabolism in Normal and Hormonally Induced Oestrus Cows

Serum HDL was measured after precipitation of LDL and VLDL by use of heavy metals salts like phosphotungstate) Mg++ (using cholesterol kit reagents cod.

Study of lipoprotein level changes in dengue infected patients in Salem, Tamilnadu, India

For transmission electron microscopy (EM) raw stool samples were processed by super direct negative staining with 2% sodium phosphotungstate, pH 6.3, as described elsewhere.

Detection and characterization of human rotavirus in hospitalized patients in the cities of Ponta Grossa, Londrina and Assai-Pr, Brazil

The following regents were used for the assay: (a) Reagent 1: Sulphuric acid, 2/3 N; (b) Reagent 2: Sodium tungstate, 10% W/V; (c) Reagent 3: Sodium carbonate, 14% W/V; (d) Reagent 4: Phosphotungstate; (e) Reagent 5: Stock Uric acid standard, 100 mg%; Working Standard was prepared with dilution of 0.1 ml of stock Uric acid standard to 10 ml purified water and mixed well.

Effect of training on physiological and biochemical variables of soccer players of different age groups

Serum LDl-[HDL.sub.1] were isolated by precipitation using [MgCl.sub.2] and phosphotungstate (Sigma Chemical Company, France) by the method of Burstein et al.

Changes in antioxidant defense status in hypercholesterolemic rats treated with Ajuga iva

A uric acid evaluation, for example, would summarize survey results for the uricase, phosphotungstate, and iron reduction methods.

Problem solving and decision making with proficiency data; analysis of proficiency surveys can help a lab troubleshoot snags in its procedures

Estimation of cholesterol and HDL cholesterol was done by CHOD--POD phosphotungstate method.

Serum creatine kinase MB in ischaemic stroke: a case control study

Sodium phosphotungstate and sodium sulfate were purchased from E.

Effects of cholesterol-supplemented and unsupplemented diets containing unextracted and extracted Syzygium cumini seeds on lipid profiles of alloxan-induced diabetic albino rats