HydrogenDetection using theSRI TCD
detector andNitrogen carrier gas
AnSRIModel 310CGasChromatograph
equippedwithaThermal ConductivityDetector
( TCD )wasused todetect hydrogen in room
air at 10ppm.
A1meterMS5A columnwithNitrogen carrier
gaswas installed in the310C columnoven
andoperatedat 50degreesCand6psi of
headpressure.
Theupper chromatogram showsa1ml injec-
tionof 10ppmhydrogen in roomair.
The lower chromatogram
shows a0.1ml injectionof
100ppmhydrogen in room
air.
Theareaof thehydrogen
peak is the same inboth
chromatogramshowever
thepeak shapeand separa-
tion from theoxygenpeak is
better due to the lower in-
jection volume.
Page1
H2DetectionLimit.pub
11-10-2006
1ml 10ppmH2
0.1ml 100ppmH2
