B
ASIC
O
PERATION
Prepare the Test Sample
CP-3800 GC Getting Started Manual
43
For Systems with 1079 Injectors
Method Settings to Analyze the Varian Test Sample on Varian GCs
Installed with the Varian Test Column
ECD FID TCD
1
TSD PFPD Micro-TCD
Initial column temp (
°
C) 80 80 80 80 80 40
Initial column hold time (min) 1 1 1 1 1 1
Program 1 final temp (
°
C) 200 200 200 200 200 200
Program 1 ramp rate (°C/min) 20 20 20 20 20 20
Program 1 hold time (min) 5 5 5 5 5 1
Injector temp (
°
C) 220 220 220 220 220 150
Detector temp (
°
C) 300 300 220 300 300 110
Range 10 11 0.05 12 10 0.5
Initial Autozero On On On On On On
TSD bead current (amps) - - - 3.0
±
0.3 -
-
Injection mode Splitless Split
Initial split state OFF On
Step 1 time (min) 0.75 -
Step 1 split state ON -
Step 1 split ratio 100 25
1
TCD Filament temp: 270
±
20
°
C; filament current: 200
±
10 mA, polarity: positive
Prepare the Test Sample
You are now ready to prepare your sample. For preparation of samples for
automated injection, please refer to the 8200/SPME AutoSampler Operator’s
Manual, P/N 03-914692-00.
You may inject your sample neat or diluted in a solvent. The Varian PFPD
test sample should be diluted 1:20 in iso-octane if you intend to use it for a
splitless injection. The choice of solvents depends on a number of factors,
including component solubility, type of detector, and polarity of the analytical
column. Select solvents to match the polarity of your column.
Solvents for GC
Following are some recommended solvents for non-polar, intermediate, and
polar phase columns.
