titer

ti·ter

also ti·tre T0235900 (tī′tər)n.1. Concentration of a substance in solution or the strength of such a substance determined by titration.2. The minimum volume needed to cause a particular result in titration.3. The temperature at which a fatty acid solidifies.

[French titre, from Old French title, title; see title.]

titer

(ˈtaɪtə; ˈtiː-) n (Chemistry) the usual US spelling of titre

ti•ter

(ˈtaɪ tər)

n. 1. the strength of a solution as determined by titration with a standard substance. 2. the concentration of a substance in a given sample as determined by titration. [1830–40; < French titre title, qualification, fineness of alloyed gold or silver < Latin titulus title]

Thesaurus

Noun

titer - the concentration of a solution as determined by titrationtitreconcentration - the strength of a solution; number of molecules of a substance in a given volume

Translations

Titer

titer

[′tī·tər] (chemistry) The concentration in a solution of a dissolved substance as shown by titration. The least amount or volume needed to give a desired result in titration. The solidification point of hydrolyzed fatty acids. (textiles) The weight per unit length of yarn. The number of filaments in reeled silk thread.

Titer

(in analytical chemistry), the concentration of a solution expressed as the amount (in grams) of a substance dissolved in 1 milliliter (ml) of solution or as the amount of any substance that reacts with 1 ml of the given solution. Accordingly, a distinction is made between the titer for a dissolved substance (for example, the titer of the solution of hydrochloric acid, T_HCI) and the titer for a substance to be determined (for example, the titer of the solution of hydrochloric acid for sodium hydroxide, T_HCI/NaOH). The titer is calculated from the formula T = P/V, where T is the titer of the solution in g/ml, P is the weight of the batch in g, and V is the volume of the measuring flask in ml. Solutions with a known titer, called standard solutions, are used in titrimetric analysis.

Titer

in immunochemical analysis, the maximum or optimum dilution of antigens, antibodies, or complement at which a positive reaction between antigens and antibodies can be recorded or the reaction of one or both components can be registered against a standard. In some cases, such as complement fixation, the maximum antigen concentration at which sensitized erythrocytes can still be lysed is taken as the antigen titer. Determination of the titer is useful in making a quick estimate of the activity of immune serums.

Three kinds of titration are used in immunochemical analysis. In one method, pipettes are used to add different amounts of the material being titrated to identical volumes of the solvent or for successive transfer of a mixture of the material and solvent to test tubes containing an identical quantity of solvent; in the latter case, equal volumes of the material, solvent, and mixture to be transferred are usually taken, which produces twofold dilutions. The second method is similar, except that capillary tubes are used and the volumes are measured from the number of drops. Glass loops capable of holding strictly standard volumes of liquid are used in automatic titration.

N. A. DORFMAN

Titer

(titre), in the textile industry, a number used to rate the thickness of fibers and yarns (chiefly silk). The titer is expressed as the product of the cross-sectional area of a fiber or yarn and the density of its material (or as the ratio of the weight of a fiber or yarn to the length). The titer came into use in the 18th century. A unit known as a legal titer has been used since 1900; it is numerically equivalent to the weight in grams of a yarn 9 km in length. In the USSR the tex replaced the titer in 1956.

Titer

titer

[ti´ter] the quantity of a substance required to react with or to correspond to a given amount of another substance.agglutination titer the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.

ti·ter

(tī'tĕr), The standard of strength of a volumetric test solution; the assay value of an unknown measure by volumetric means. [Fr. titre, standard]

titer

Infectious disease Somewhat incorrectly, the term titer refers to the serum concentration of an antibiotic at which it is (bacteri)–cidal or static. See Serum bactericidal titer, Serum inhibitory titer.

ti·ter

(tī'tĕr) The standard of strength of a volumetric test solution; the assay value of an unknown measure by volumetric means.
Synonym(s): titre. [Fr. titre, standard]

Titer

A dilution of a substance with an exact known amount of fluid. For example, one part of serum diluted with four parts of saline is a titer of 1:4.Mentioned in: Antimyocardial Antibody Test, Antinuclear Antibody Test, Cold Agglutinins Test, Cytomegalovirus Antibody Screening Test, Fibrin Split Products, Rubella Test, TORCH Test

ti·ter

(tī'tĕr) The standard of strength of a volumetric test solution.
Synonym(s): titre. [Fr. titre, standard]

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Synonyms for titer

noun the concentration of a solution as determined by titration

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