N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
372
7 IR
Carbon disulfide: 0.2 mm cell
Carbon disulfide: 1 mm cell
7.14.2 Infrared Spectra of Suspension Media
As it is difficult to prepare pellets and thin mineral oil films of reproducible thickness, the bands of these suspension matrixes are always found superimposed on the
sample spectra.
Mineral oil (nujol): 10 µm thickness
Potassium bromide: pellet
100
80
60
40
20
0
% Transmission
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100
80
60
40
20
0
% Transmission
4000 3500 3000 2500 2000 2000 1800 1600 1400 1200 1000 800 600
100
80
60
40
20
0
% Transmission
4000 3500 3000 2500 2000 2000 1800 1600 1400 1200 1000 800 600
100
80
60
40
20
0
% Transmission
4000 3500 3000 2500 2000 2000 1800 1600 1400 1200 1000 800 600