- chemical shift
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the change in the nuclear magnetic resonance frequency of a nucleus depending on its electronic environment; used in NMR spectroscopy to determine the structure of molecules
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chemical shift
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chemical shift — n the characteristic displacement of the magnetic resonance frequency of a sample nucleus from that of a reference nucleus that provides the basis for generating and interpreting nuclear magnetic resonance and magnetic resonance imaging data … Medical dictionary
Chemical shift — In nuclear magnetic resonance (NMR) spectroscopy, the chemical shift is the resonant frequency of a nucleus relative to a standard. Often the position and number of chemical shifts are diagnostic of the structure of a molecule.[1][2][3] Chemical… … Wikipedia
chemical shift — cheminis poslinkis statusas T sritis Standartizacija ir metrologija apibrėžtis Atstumas tarp tiriamosios ir etaloninės medžiagų signalų magnetinio branduolių rezonanso spektre. atitikmenys: angl. chemical shift vok. chemische Verschiebung, f rus … Penkiakalbis aiškinamasis metrologijos terminų žodynas
chemical shift — cheminis poslinkis statusas T sritis chemija apibrėžtis Atstumas tarp tiriamosios medžiagos ir etaloninės medžiagos signalų MBR spektre. atitikmenys: angl. chemical shift rus. химический сдвиг … Chemijos terminų aiškinamasis žodynas
chemical shift — cheminis poslinkis statusas T sritis fizika atitikmenys: angl. chemical shift vok. chemische Verschiebung, f rus. химический сдвиг, m pranc. déplacement chimique, m … Fizikos terminų žodynas
Residual chemical shift anisotropy — (RCSA) is the difference between the chemical shift anisotropy (CSA) of aligned and non aligned molecules. It is normally three orders of magnitide smaller than static CSA. RCSA is useful for structural determination and it is among the new… … Wikipedia
chemical compound — Introduction any substance composed of identical molecules consisting of atoms (atom) of two or more chemical elements (chemical element). All the matter in the universe is composed of the atoms of more than 100 different chemical elements … Universalium
Chemical imaging — (as quantitative chemical mapping) is the analytical capability to create a visual image of components distribution from simultaneous measurement of spectra and spatial, time informations.[1][2] The main idea for chemical imaging, the analyst may … Wikipedia
Chemical engineer — Chemical engineers design, construct and operate plants Part of Chemical engineering History … Wikipedia
Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… … Wikipedia
