Page 140 - Basic Gas Chromatography
P. 140
the
the
127
References
of
12
produced
2,5
eo
2,
which
w
a +t
11
1,
1,
NANNY
aaa
know
sample
to
wished
unknown
balance)
one
Analysis
density
an
If
indexes
that
8.1a.
detector)
(gas
Qualitative
consider
chromatopyrography
Retention
Figure
chromatograph
selective
For
in
derivatization
time;
example,
detectors
shown
Methods
(mass
parameters
Analysis
retention
GC
weight
time
Post-column
MSD
Pre-column
selective
channel
and
chromatogram
methods
MSD
GC
an
Molecular
Retention
Chemical
Pyrolysis
or
Relative
Qualitative
FTIR
FTIR
NMR
Off-line
On-line
Retention
As
8.1
MS,
UV
MS
Dual
of
Other
Method
TABLE
Use
rate).
3.
2.
1.
quantitative run be could standards n-alcohol of series a n-alcohols, were components As 8.1b. Figure like chromatogram a producing conditions identical under this of most those match exactly times retention whose peaks those figure, the in shown i only will process This n-alcohols. the as identified be can sta
Analysis qualitative and analysis, with begins i a i ° analysis However, common to qualitative analysis. Chapter 10. for qualitative other and its for stationary pressure (carrier
and both for for quantitative however, , It i used qualitative for parameter. identity, is it (GC-MS) for detail in in methods used these of used be can constant: length, temperature, and 126
Qualitative Quantitative be can used more is it useful devoted topic; s that to analysis. ANALYSIS parameter some related closely cannot confirm peak the to (MS) GC that used discussed is it the lists common most a is 1 summary good Parameters for time solute given a column variables kept are (liquid loading),
8. Gas chromatography Because analysis. chapter ter is qualitative QUALITATIVE chromatographic The volume tion or parameters spectrometer widely so is Table 8.1 Reference GC. in Retention retention ane following its thickness