Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 30, Problem 30.4QAP
Interpretation Introduction
Interpretation:
The principle of separation by CZE is to be stated.
Concept introduction:
The capillary zone electrophoresis is a type of electrophoresis in which separation of buffer solution takes place because of electrosoomotic flow. The buffer solution remains constant throughout the separation process. The rate of electrosoomotic flow controls the rate of migrating particles. The ionic compounds are easily separated by this method. The separation solution depends on the physical characteristics of the compound such as hydrodynamic radius, charge and ionic force of ions.
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Transmitance
3. Which one of the following compounds corresponds to
this IR spectrum?
Point out the absorption band(s) that helped you
decide.
OH
H3C
OH
H₂C
CH3
H3C
CH3
H3C
INFRARED SPECTRUM
0.8-
0.6
0.4-
0.2
3000
2000
1000
Wavenumber (cm-1)
4. Consider this compound:
H3C
On the structure above, label the different types of H's
as A, B, C, etc.
In table form, list the labeled signals, and for each
one state the number of hydrogens, their shifts, and the
splitting you would observe for these hydrogens in the ¹H
NMR spectrum.
Label
# of hydrogens
splitting
Shift (2)
None
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