polarimetry

polarimetry
See polarimetric.

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      in analytic chemistry, measurement of the angle of rotation of the plane of polarized light (that is, a beam of light in which the vibrations of the electromagnetic waves are confined to one plane) that results upon its passage through certain transparent materials. Polarimetry is of interest to the chemist because the ability of a substance to affect polarized light in this way is closely related to its chemical structure. A compound that displays this ability is called optically active (see optical activity).

      Polarimetric analysis is commonly used in the sugar industry, because the angle of rotation is related to the concentration of sucrose in a solution and can be used, in conjunction with other properties (such as density), in rapid and simple measurements of such concentrations. Many organic and some inorganic compounds are optically active; this property, easily determined by polarimetry, frequently is used as an indication of purity.

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Universalium. 2010.

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  • Polarimetry — is the measurement and interpretation of the polarization of transverse waves, most notably electromagnetic waves, such as radio waves and light. Typically polarimetry is done on electromagnetic waves that have traveled through or reflected,… …   Wikipedia

  • Polarimetry — Po lar*im e*try, n. (Opt.) The art or process of measuring the polarization of light. [1913 Webster] …   The Collaborative International Dictionary of English

  • polarimetry — poliarimetrija statusas T sritis Standartizacija ir metrologija apibrėžtis Analizės metodas, pagrįstas optiškai aktyvių medžiagų savybe sukti poliarizacijos plokštumą. atitikmenys: angl. polarimetry vok. Polarimetrie, f rus. поляриметрия, f pranc …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • polarimetry — poliarimetrija statusas T sritis chemija apibrėžtis Analizės metodas, pagrįstas optiškai aktyvių medžiagų savybe sukti šviesos poliarizacijos plokštumą. atitikmenys: angl. polarimetry rus. поляриметрия …   Chemijos terminų aiškinamasis žodynas

  • polarimetry — poliarimetrija statusas T sritis fizika atitikmenys: angl. polarimetry vok. Polarimetrie, f rus. поляриметрия, f pranc. polarimétrie, f …   Fizikos terminų žodynas

  • polarimetry — ˌpōləˈrimə.trē noun ( es) Etymology: International Scientific Vocabulary polar + i + metry : the art or process of using the polarimeter (as in measuring the polarization of light) * * * polarimetry /pō lə rimˈi tri/ noun • • • Main Entry: ↑ …   Useful english dictionary

  • polarimetry — noun see polarimeter …   New Collegiate Dictionary

  • polarimetry — noun a) The measurement of the polarization of electromagnetic radiation b) Analysis using a polarimeter …   Wiktionary

  • polarimetry — Measurement by polarimeter. * * * po·la·rim·e·try (po″lə rimґə tre) measurement of the rotation of plane polarized light by a liquid or solid …   Medical dictionary

  • polarimetry — Смотри Поляриметрия …   Энциклопедический словарь по металлургии

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