| 单词 | lf value |
| 释义 | > as lemmasLf value Lf n. [notionally < limit of flocculation] Medicine that quantity of a specified toxin which flocculates most rapidly when mixed with one unit of antitoxin; frequently attributive in Lf dose, Lf value. ΘΚΠ the world > life > biology > substance > process stimulators or inhibitors > toxin > [noun] > quantity of Lf1924 1924 A. T. Glenny & C. C. Okell in Jrnl. Pathol. & Bacteriol. 27 189 We think it useful to employ the symbol Lf for the amount of a toxin equivalent to 1 unit of a standard antitoxin as established by flocculation... The Lf value may therefore be added to the Lo, L+ and Lr values in defining the combining properties of individual toxins. 1949 Jrnl. Hygiene 47 107/1 The potency of toxins and toxoids, as measured by the Lf dose, may constitute some rough measure of antigenic efficiency. 1981 Lancet 1 Aug. 219/2 Single doses (100 Lf or 250 Lf) of a potent tetanus toxoid were given to such individuals with naturally acquired antitoxin. < as lemmas |
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