2006-12-02 00:57:51 · 3 answers · asked by cherokee_3 c 1 in Science & Mathematics ➔ Chemistry
Infra red spectroscopy is done with wavelength > 800 Nm , longer than red. They are invisible toeye but absorbed by water.
They are used in medicine as optical device since water absobs them
2006-12-02 01:16:07 · answer #1 · answered by maussy 7 · 0⤊ 0⤋
An analytical technique which utilises an instrument which passes infrared radiation through a sample or which bounces infrared radiation off the surface of a sample. A very sensitive heat detecting device measures the amount of infrared radiation absorbed as the wavelength of the radiation reaching the detector is changed. IR can give useful information about the type of compounds present in a sample, but it is not capable of precisely identifying a complex mixture. ...
2006-12-02 09:45:53 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Here:
http://en.wikipedia.org/wiki/Infrared_spectrometry
2006-12-02 09:00:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋