Experimental - Spectroscopy
Experimental - Spectroscopy
Experimental - Spectroscopy
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www.spectroscopyonline.com<br />
June 2011 <strong>Spectroscopy</strong> 26(6) 27<br />
(a)<br />
1.6<br />
1.4<br />
1.2<br />
(a) 2<br />
1.8<br />
1.6<br />
1.4<br />
wavelength<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
Wavelength<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
(b)<br />
0.2<br />
0<br />
4000 5000 6000 7000<br />
Absorbance<br />
1.6<br />
1.4<br />
1.2<br />
8000 9000 10,000<br />
0.2<br />
(b) 0.7<br />
0<br />
4000 5000 6000 7000 8000 9000 10,000<br />
Absorbance<br />
0.6<br />
0.5<br />
wavelength<br />
1<br />
0.8<br />
0.6<br />
Wavelength<br />
0.4<br />
0.3<br />
0.4<br />
0.2<br />
0.2<br />
0.1<br />
0<br />
4500<br />
(c) 1.4<br />
4550<br />
4600 4650 4700 4750 4800 4850 4900 4950 5000<br />
Absorbance<br />
(c) 2<br />
0<br />
4500 4550 4600 4650 4700 4750 4800 4850<br />
Absorbance<br />
4900 4950 5000<br />
1.2<br />
1.8<br />
1.6<br />
1<br />
1.4<br />
wavelength<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Wavelength<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
(d) 0.18<br />
0<br />
5000 5500 6000 6500<br />
Absorbance<br />
0.16<br />
0.14<br />
(d) 0.2<br />
0<br />
5000 5500 6000 6500<br />
Absorbance<br />
0.18<br />
0.16<br />
wavelength<br />
0.12<br />
0.1<br />
0.08<br />
0.06<br />
Wavelength<br />
0.14<br />
0.12<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
(e)<br />
0.04<br />
6000 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500<br />
Absorbance<br />
0.2<br />
0.18<br />
0.16<br />
0.14<br />
(e) 0.2<br />
0.02 6500 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500<br />
Absorbance<br />
0.18<br />
0.16<br />
0.14<br />
wavelength<br />
0.12<br />
0.1<br />
Wavelenght<br />
0.12<br />
0.1<br />
0.08<br />
0.08<br />
0.06<br />
0.06<br />
0.04<br />
0.04<br />
0.02<br />
7500 8000 8500 9000<br />
Absorbance<br />
0.02<br />
7500 8000 8500 9000<br />
Absorbance<br />
Figure 5: Absorption spectra of mixtures of toluene and n-heptane: (a)<br />
from 4500 to 10,000 cm -1 ; (b) 4500–5000 cm -1 ; (c) 5000–6500 cm -1 ; (d)<br />
6500–7500 cm -1 ; (e) 7700–9000 cm -1 .<br />
Figure 6: Absorption spectra of mixtures of dichloromethane and<br />
n-heptane: (a) from 4500 to 10,000 cm -1 ; (b) 4500–5000 cm -1 ; (c) 5000–<br />
6500 cm -1 ; (d) 6500–7500 cm -1 ; (e) 7600–9000 cm -1 .
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