Shimadzu GC-2010 Plus User Manual

13 Detector
13.3
13.
160
GC-2010 Plus
13.3Thermal conductivity detector (TCD)
13.3.1 Principle of TCD operation
The thermal conductivity detector (TCD) can detect all compounds except the carrier gas
itself.
When a filament heated by the application of current is provided in a gas atmosphere with a
high thermal conductivity such as helium, the filament temperature rises as sample compo-
nents with a lower thermal conductivity pass the filament. The filament temperature changes
affect its resistance; the resistance is measured and produces a peak.
A reference filament also exists, where only carrier gas flows, to eliminate background resis-
tance fluctions.
Fig. 13.3.1

Shimadzu GC-2010 Plus Specifications

General

Type	Gas Chromatograph
Model	GC-2010 Plus
Manufacturer	Shimadzu
Maximum Temperature Ramp Rate	120 °C/min
Detector Options	FID, TCD, ECD, FPD, NPD, MS
Electronic Flow Control (EFC)	Yes
Data Sampling Rate	Up to 250 Hz
Column Oven Temperature Range	Ambient +5°C to 450°C
Maximum Oven Heating Rate	120 °C/min
Injection Port	Split/Splitless, PTV
Display	LCD