| 释义 |
volumetric analysis
volumetric analysisn.1. Quantitative analysis using accurately measured titrated volumes of standard chemical solutions.2. Analysis of a gas by volume.volumetric analysis n 1. (Chemistry) quantitative analysis of liquids or solutions by comparing the volumes that react with known volumes of standard reagents, usually by titration. Compare gravimetric analysis 2. (Chemistry) quantitative analysis of gases by volume volumet′ric anal′ysis
n. 1. the determination of the concentration, by volume, of a substance in a solution, as by titration. 2. the determination of the volume of gases or changes in their volume during combination. [1860–65] Thesaurus| Noun | 1. | volumetric analysis - determination of the volume of gases (or changes in their volume) during combinationquantitative analysis, quantitative chemical analysis - chemical analysis to determine the amounts of each element in the substance | | 2. | volumetric analysis - quantitative analysis by the use of definite volumes of standard solutions or reagentsquantitative analysis, quantitative chemical analysis - chemical analysis to determine the amounts of each element in the substanceacidimetry - volumetric analysis using standard solutions of acids to measure the amount of a base presentalkalimetry - volumetric analysis using standard solutions of alkali to measure the amount of acid presenttitration - a measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete; the concentration of the unknown solution (the titer) can then be calculated |
Volumetric Analysis
volumetric analysis[¦väl·yə¦me·trik ə′nal·ə·səs] (analytical chemistry) Quantitative analysis of solutions of known volume but unknown strength by adding reagents of known concentration until a reaction end point (color change or precipitation) is reached; the most common technique is by titration. Also known as titrimetric analysis. Volumetric Analysis a group of methods in quantitative chemical analysis that involve the measurement of volumes to determine the concentration of a given substance. In titration, one of the more common volumetric techniques currently employed in laboratory research, the volume of a consumed reagent solution of a known concentration that is necessary to attain the equivalence point is measured. In certain cases, however, it is not fully justifiable to consider titrimetry a subset of volumetric analysis. Volumetric analysis also includes many methods of gas analysis, whereby the volume of an absorbed or evolved gas is measured. Other volumetric analysis methods involve the measurement of a volume of precipitate; for example, the sulfur content in cast iron may be determined by the volume of barium sulfate precipitate in a graduated centrifugal test tube. Ultramicrochemical analysis is used to determine the concentration of a substance by the volume of derived precipitate when weighing is hindered or impossible. REFERENCESKolthoff, I. M., and V. A. Stenger. Ob”emnyi analiz, vols. 1–2. Moscow, 1950–52. (Translated from English.)
Ob”emnyi analiz, vol. 3. Moscow, 1960. (Translated from English.)
Berka, A., J. Vulterin, and J. Zŷka. Novye red-oks metody v analiticheskoi khimii. Moscow, 1968. (Translated from Czech.)A. I. BUSEV volumetric analysis
vol·u·met·ric a·nal·y·sisquantitative analysis by the addition of graduated amounts of a standard test solution to a solution of a known amount of the substance analyzed, until the reaction is just at an end; depends on the stoichiometric nature of the reaction between the test solution and the unknown.vol·u·met·ric a·nal·y·sis (vol'yū-met'rik ă-nal'i-sis) Quantitative analysis by the addition of graduated amounts of a standard test solution to a solution of a known amount of the substance analyzed, until the reaction is just at an end; depends on the stoichiometric nature of the reaction between the test solution and the unknown. volumetric analysisQuantitative analysis performed by the measurement of the volume of solutions or liquids.volumetric analysis
Words related to volumetric analysisnoun determination of the volume of gases (or changes in their volume) during combinationRelated Words- quantitative analysis
- quantitative chemical analysis
noun quantitative analysis by the use of definite volumes of standard solutions or reagentsRelated Words- quantitative analysis
- quantitative chemical analysis
- acidimetry
- alkalimetry
- titration
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