Transcription of Spectroscopy vs spectrometry
{{id}} {{{paragraph}}}
Example: dental hygienist
Spectroscopy vs spectrometry
Spectroscopy vs spectrometrySpectroscopy Latin specere to look at Greek skopia to see -metry Greek metria process of measuring Spectroscopy traditionally involves the absorption of some type of energy leading to an excited state that is subsequently emitted - This returns the molecule to the initial state non-destructively. Energy of excitation is just enough to promote a ground state to an excited state .. no more, no less because it is quantized Typical examples: UV-vis, fluorescence, IR, NMR Versus typically destructive techniques (mass spec) or those that involve the scattering of radiation (X-ray crystallography) Spectroscopic methods: what are the goals?
Ultraviolet-visible (UV-vis) - 1930s Woodward-Fieser Rules ca. 1941 Circular dichroism 1960s Infrared (IR) - 1940s Functional groups, molecular fingerprints Raman spectroscopy 1960s Mass spectrometry (MS) - 1950s Molecular weights, and observation of key fragments Characteristic reactivity … molecular fingerprints
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: