| FD | familial dysautonomia; family doctor; fan douche; fatal dose; fetal danger; fibrin derivative; fibro... |
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| FW | Felix-Weil [reaction]; Folin-Wu [reaction]; fragment wound |
| FWR | Felix-Weil reaction; Folin-Wu reaction |
| ISI | International Sensitivity Index of reagent/instrument combination |
| AR | absolute risk; accounts receivable; achievement ratio; actinic reticuloid [syndrome]; active resista... |
| PAS | Periodic acid-Schiff reagent |
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| Folin's reagent | The reaction of amino acids in alkaline solution with 1,2-naphthoquinone-4-sulfonate (Folin's reagent) to yield a red colour; useful for quantitative assay. Synonym: Folin's reagent. (05 Mar 2000) |
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| Folin-Looney test | A test for tyrosine that gives a blue colour in alkaline solution with a reagent consisting of sodium tungstate, phosphomolybdic acid, and phosphoric acid. (05 Mar 2000) |
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| Folin, Otto | <person> U.S. Biochemist, 1867-1934. See: Folin's reaction, Folin's test, Folin-Looney test. (05 Mar 2000) |
| Folin's reaction | The reaction of amino acids in alkaline solution with 1,2-naphthoquinone-4-sulfonate (Folin's reagent) to yield a red colour; useful for quantitative assay. Synonym: Folin's reagent. (05 Mar 2000) |
| Folin's test | A quantitative test for uric acid by means of the colour produced with phosphotungstic acid and a base; a quantitative test for urea; the urea is decomposed by boiling with magnesium chloride, and the freed ammonia is measured. (05 Mar 2000) |
| Lowry-Folin assay | A method for determining protein concentrations using the Folin-Ciocalteu reagent. Synonym: Lowry-Folin assay. (05 Mar 2000) |
| amino acid reagent | A reagent used in the identification and quantification of amino acids. (05 Mar 2000) |
| Benedict-Hopkins-Cole reagent | <chemistry> Magnesium glyoxalate, made from a mixture of oxalic acid and magnesium, used for testing proteins for the presence of tryptophan. (12 Aug 2000) |
| biuret reagent | An alkaline solution of copper sulfate. (05 Mar 2000) |
| Mandelin's reagent | A solution of ammonium vanadate in sulfuric acid, used in colour tests for alkaloids. (05 Mar 2000) |
| reagent | <technique> A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping. It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product. The adjacent hydroxyl groups are oxidized to form aldehydes by periodic acid (HIO4) and these aldehyde groups react with Schiff's reagent (basic fuchsin decolourised by sulphurous acid) to give a purple colour. Acronym: PAS (18 Nov 1997) |
| reagent kits, diagnostic | Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use. (12 Dec 1998) |
| reagent strips | Narrow pieces of material impregnated or covered with a substance used to produce a chemical reaction. The strips are used in detecting, measuring, producing, etc., other substances. (12 Dec 1998) |
| Marme's reagent | A solution of potassium iodide and cadmium iodide used in testing for alkaloids. (05 Mar 2000) |
| Marquis' reagent | A solution of formaldehyde in sulfuric acid used in colour tests for formaldehyde. (05 Mar 2000) |
| Girard's reagent | The hydrazine of betaine chloride, used to extract ketonic steroids by forming water-soluble hydrazones with them. (05 Mar 2000) |
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