| 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) |
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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) |
| 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) |
| Folin, Otto | <person> U.S. Biochemist, 1867-1934. See: Folin's reaction, Folin's test, Folin-Looney test. (05 Mar 2000) |
| 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) |
| folinate | A salt or ester of folinic acid. (05 Mar 2000) |
| folinic acid | N5Formyl-5,6,7,8-tetrahydrofolic acid;the active form of folic acid which acts as a formyl group carrier in transformylation reactions; the calcium salt, leucovorin calcium, has therapeutic use. Synonym: citrovorum factor, leucovorin. (05 Mar 2000) |
| Lowry-Folin assay | A method for determining protein concentrations using the Folin-Ciocalteu reagent. Synonym: Lowry-Folin assay. (05 Mar 2000) |
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