Analytical techniques Flashcards
1
Q
What is IR spectroscopy
A
When a beam of ir radiation is passed through a sample of chemical
The ir is absorbed by the covalent bonds in the molecules
Different bonds absorb different frequencies
2
Q
C__H. bond frequency
A
2850-3100
3
Q
O-H bond frequency
A
3200-3600
4
Q
carboxylic acid bond frequency (O-H)
A
2500-3600
5
Q
C=O bond frequency
A
1630-1820
6
Q
How is ir spectroscopy used in real life
A
Breathalisers
gass analysers
7
Q
What is mass spectroscopy
A
a sample is fired with e- to break it up and then fired along the tube, heavier fragments go further builds a graph
8
Q
A
