GCAccessories
76
Methanizer (for low level COandCO
2
byFID)
• ConvertsCO&CO
2
toMethanewithout changing retention times
• Enables theFIDDetector todetect low levelsof CO&CO
2
• Threepossibleconfigurations for your applicationneeds
• Thermostatted to 380°C
The Methanizer option enables the Flame Ionization Detector to detect low levels of CO and CO
2
. The
Methanizer is packed with a nickel catalyst powder. During analysis, the Methanizer is heated to 380°C.
When thecolumnefluentmixeswith theFIDhydrogen supply andpasses through theMethanizer, COand
CO
2
are converted tomethane.
Since theconversionof COandCO
2
tomethaneoccurs after the samplecompoundshavepassed through
the column, their retention times are unchanged. Hydrocarbons pass through theMethanizer unaffected.
The special Methanizer FID detector assembly operates like the regular FID detector, except that the FID
temperaturemustbeset to380°C.Due to thechemical relationshipbetweennickelandsulfur, theMethanizer
canbepoisonedby largequantities of sulfur gas.
The Methanizer accessory is available in three
conigurations:
1. Built into the FIDdetector.
2. Built into the valve oven ducts on the side of
an8610GC.
3. As a stand-alone unit for use with any FID
detector.
When choosing the second option, a valve oven
must also be ordered (part #8690-0088; see price
list below).
8690-0082
Methanizer Jet installed in special FIDdetector body
8670-1082
ReplacementMethanizer Jet
8690-0081
Methanizer accessorybuilt into valveoven
8690-0088
Heated, thermostatted valveovenmountedonan8610CGC
8670-1081
ReplacementMethanizer tube
0510-0081
510 stand-aloneMethanizer Kit for usewithany FID
0510-1081
510Methanizer replacement tube
