Application
News
No. G322
The Nexis GC-2030 gas chromatograph has begun to
support packed columns. The detectors compatible
with packed columns are a flame ionization detector
(FID) and a thermal conductivity detector (TCD).
In this article, we provide an example of SUS-packed
column FID analysis using the Nexis GC-2030,
showing the separation of an organic solvent mixture.
C. Kanamori, K. Kawamoto
Packed Column Support System
An SUS column which can be used with the Nexis GC-
2030, a system compatible with packed columns, is the
same as that used for the GC-14, GC-17 or GC-2014, and
it can be shared between these instruments.
Using the FID-2030Packed kit (P/N: S221-85191-41), the
FID-2030 can be easily modified to become a packed FID
by:
• Replacing the standard nozzle for the FID with one for a
packed FID;
• Removing the FID’s capillary column adaptor.
Fig. 1 shows an example of SUS column installation.
Organic Solvent Mixture
The sample prepared by mixing equivalent quantities
of 12 organic solvents shown in Table 2 was analyzed
using an SUS packed column. The obtained
chromatogram was equivalent to that obtained from
the results of analysis using the GC-2014.
Analysis Conditions
Table 1 lists the configuration of the instrument used
for analysis and the analysis conditions.
Table 1 Instrument Configuration and Analysis Conditions
Gas Chromatography
Packed Column Analysis of Organic Solvent
Mixture Using Nexis™ GC-2030 (FID)
Fig. 1 Example of SUS Column Installation
Model : Nexis GC-2030 /AOC-20i
+SINJ-2030+FID-2030Packed Kit
Injection Mode : Direct
Injection Volume : 0.2 μL
Injection Temp. : 250 °C
Carrier Gas : He
Carrier Gas Control : Constant flow rate (20 mL/min)
Column : Porapak™ Q 80/100
(2 m × 3 mm I.D.)
Detector : Flame ionization detector (FID)
Detector Temp. : 280 °C
Detector Gas :H
2
32.0 mL/min, Air 200 mL/min
(No makeup gas required)
Column Oven Temp. : For the isothermal conditions and column
temperature program conditions, see
“Results of Isothermal Analysis” and
“Results of Column Temperature Program
Analysis.”
Extendable to Dual Line
A packed column analysis of samples with a column
temperature elevating program may cause greater
baseline drift due to the elution of the liquid phase from
the column, which can affect the identification or
quantitative processing.
The FID-2030 (compatible with packed columns) can be
extended to a dual line system consisting of the
reference line, which has a sample vaporization
chamber, column and detector, for elimination of
baseline drift, as well as the sample line for analyzing
samples.
Compounds to be analyzed
The sample was prepared by mixing equivalent
quantities of the compounds shown in Table 2.
Table 2 Compounds Contained in Sample
No. Name
1 Methanol
2 Ethanol
3 Acetonitrile
4 Acetone
5 1-Propanol
6 Methyl ethyl ketone
7 Ethyl acetate
8 2-Methoxyethanol
9 Benzene
10 2-Ethoxyethanol
11 N,N-dimethylformamide
12 Tetrachloroethylene
