GC Gas Purifiers

Gas purifiers are an essential part of your GC analysis.  Without the appropriate gas purifier, problems such as noisy baselines, moisture entering GC column, excessive bleed, reduced column lifetime and irreproducible results will occur.  These problems are created by hydrocarbons, moisture and oxygen in the carrier gases.

 


 

Individual Gas Purifier Selection 


1

Removes Moisture

103480

 

Part no. Description Fitting
Size
103480 Moisture Trap 1/4"

The Moisture trap removes water from inert gases, air or hydrogen to less than 20 ppb at flow rates up to 2 L/min.  The trap has a capacity for water of 15 g.

 


2

Removes Organics

Hydrocarbon

 

Part no. Description Fitting
Size
103481 Hydrocarbon Trap 1/4"

The Hydrocarbon trap removes C5 weight and heavier hydrocarbons from inert gases, air or hydrogen to low ppb levels.  It has an impervious outer stainless steel casing.

 

Packed Column Moisture Trap

Packed Column Moisture Trap

Part no. Description Fitting
Size
103495 Glass Moisture Trap 1/8"
1034951 Glass Moisture Trap 1/4"

These are gas filters for applications requiring high-efficiency moisture removal, with the benefit of a depletion indicator.  Up to 6 grams water is removed to low ppb levels.  The adsorbing materials are Molecular Sieve 5A and cobalt-free CoFree™ indicator, held in a sturdy glass tube.  The gas to be purified contacts only glass, metal and the adsorbents.

CoFree™ changes color from orange to green at about 5% relative humidity to signal leaks in the system; the molecular sieve removes moisture to trace evels.  The glass tube is sealed with a special dual sealing system for extra protection from leaks.  An internal frit at each end prevents particulate contamination.  The inner glass tube is enclosed in a plastic outer tube for safety.  Dimensions: 3.5 cm x 26 cm, maximum pressure 6.8 bar (100 psig).