Shimadzu GC-2014 Instruction Manual

171
13 Detector
13.4
13.
GC-2014
13.4Background Compensation
If the baseline drifts considerably during programmed temperature analysis, the baseline drift can
be saved as a background baseline in GC’s waveform memory (background save). Afterwards,
the background can be subtracted from the signal (background compensation). The below is
background compensation procedures.
1. Set background storage.
Select where the background baseline
should be saved on the [DET] key main
screen. Either “Buff 1” or “Buff 2” can be
selected.
BACKGROUND SIG. SAVE
Buff 1 (or Buff 2)
BACKGROUND SIG. COMP. Off
2. Execute analysis without sample injection. Baseline fluctuation is saved in “Buff 1” or
“Buff 2” as background.
3. Set background compensation.
Set the background to be subtracted as the
baseline fluctuation on the [DET] key main
screen.
BACKGROUND SIG. SAVE Off
BACKGROUND SIG. COMP. Buff 1 (or Buff 2)
4. Inject a sample and execute analysis. A signal after subtracting the background is
outputted.

Shimadzu GC-2014 Specifications

General

Type	Gas Chromatograph
Display	LCD
Maximum Heating Rate	120°C/min
Data Acquisition	Digital
Maximum Number of Detectors	4
Weight	Approx. 45 kg
Carrier Gas	Helium, Nitrogen, Hydrogen
Detector Options	FID, TCD, ECD, FPD
Injection Port	Split/Splitless, On-column
Gas Control	Electronic Flow Control (EFC)
Temperature Programming Rate	0.1 to 120 °C/min
Power Requirements	230 V AC, 50/60 Hz
Detector Temperature Range	Up to 400°C (depending on detector type)