Flame emission spectroscopy is a chemical analysis technique that relies on looking at the energy emitted when excited atoms return to a ground state. Atoms associated with different elements have their own distinct spectral signatures which can be identified with a highly sensitive detector. This method of material analysis is destructive in nature, but can provide important information about the components of an unknown sample of a compound or solution.
Norwich Near Infrared Consultancy, 10 Aspen Way, Cringleford, Norwich NR4 6UA, UK. When you hold your hand out to a burning fire you “feel” the heat being emitted by the fire but what is happening? The fire gives out light and infrared (IR) radiation; from a fire most of this is near infrared (NIR) radiation.
Visible and Ultraviolet Spectroscopy. 1. Background. An obvious difference between certain compounds is their color. Thus, quinone is yellow; chlorophyll is green; the 2,4-dinitrophenylhydrazone derivatives of aldehydes and ketones range in color from bright yellow to deep red, depending on double bond conjugation; and aspirin is colorless.