Ojrhngvmd

Gas Clean
Filters

Delivering Clean Gases for GC and GC/MS Operation

Gas Clean
Filters
Fast, leak-free replacement–without tools!
Each Gas Clean Filter features a unique quick disconnectdesign which allows the easy replacement of filters in less
than one minute! The connecting unit design allows the
instrument to remain under pressure during filter
replacement and prevents air fromentering the system.
Unlike competitor’s in-line filters, changing a Varian filter
requires no tools, or gas shut off. It simply doesn’t get any
easier.

• Fast, leak-free filter replacement
•Highly visible sensitive indicators
• Economical— immediate pay back
Oxygen and moisture contamination in carrier gases can have
a significant impact on your GC analyses. Loss of sensitivity,accuracy, and column damage can significantly increase
instrument downtime. Glass wool in liners can become active
and faster septa degradation can give high background signals
and ghost peaks, leadingto time-consuming trouble-shooting.
Figure 1 shows the difference in bleed levels due to moisture
Figure 1

0.034

exposure with and without a filter. Positioning Varian’s Gas

0.030

CleanFilter system immediately before the GC inlet (Figure 2),

0.026

No filter used

reduces impurities entering your detector, thus improving trace

0.022

With Varian Gas Clean Filteranalysis. Impurities entering your column will also be reduced—

0.018

column life. Varian Gas Clean Filters do not only guarantee
that the gas entering your system is of the highest quality butit is also an indicator if leaks are present in the GC system.
Varian Gas Clean Filters will warn you if you have a leak
between the Gas Clean Filter system and GC system as the
sensitive indicatorswill change from the bottom-up.
Figure 2

0.014

Volts

critical for high temperature analysis and essential for longer

0.010
0.006
0.002
0

50

100

150

200

250

min....