单词	osmometer
释义	osmometer /ɒzˈmɒmɪtə / noun An instrument for demonstrating or measuring osmotic pressure.Individual cell osmotic pressure is measured using a picolitre osmometer.... The value of the solution dripping out of the segments was measured periodically with the osmometer. The concentration of the samples exceeded the capacity of the osmometer and therefore were diluted with distilled water (1: 1 or 1: 2 urine: water depending on concentration of sample) prior to the measurement. Derivatives osmometric adjective ... The osmometric measurement of molecular weight is based on the fact that the osmotic pressure is proportional to the number of gram-molecules of dissolved material in a definite volume of solution. osmometrically adverb osmometry noun ... Other methods of molecular weight determination include gel permeation chromatography, end-group analysis, and osmometry. Osmolality was measured by vapor pressure osmometry. Osmotic potentials of xylem sap and the external medium were estimated by freezing point depression osmometry.
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