582
R. W. Kessler and W. Kessler
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500
Absorbance -log(I/I0)
Wavelength nm
A
B
C
D
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2200
2300
2400
2500
Absorbance -log(I/I0)
Wavelength nm
A
B
C
D
Fig. 23.13 Top: NIR spectra (whole range) of gasolines of different RON collected from four
different locations in Germany in close vicinity to three refineries. A, B, and C represent the location
of the three different refineries, D is a sampling point in between A and B. Bottom: spectra of the
same samples in more detail within the combination band range 1 (details see cited literature and
text below)
R. W. Kessler and W. Kessler
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500
Absorbance -log(I/I0)
Wavelength nm
A
B
C
D
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2200
2300
2400
2500
Absorbance -log(I/I0)
Wavelength nm
A
B
C
D
Fig. 23.13 Top: NIR spectra (whole range) of gasolines of different RON collected from four
different locations in Germany in close vicinity to three refineries. A, B, and C represent the location
of the three different refineries, D is a sampling point in between A and B. Bottom: spectra of the
same samples in more detail within the combination band range 1 (details see cited literature and
text below)