Purifiers/Traps
Rechargeable Molecular Sieve “S” Trap
l
Increases column and 02 trap lifetime.
l
Reduces baseline noise for sensitive detectors such as ECDs
and mass spectrometers.
While glass indicatingmoisture traps offer convenience, they
are fragile and add to waste disposal problems since they are
discarded when spent. Restek’s rechargeable molecular sieve
moisture trap offers the best alternative. The “S” design
allows the trap to be regenerated in the GC oven. The metal
body and single end fitting design eliminate the possibility of
leakage or breakage and the built-in 40 micron frit prevents
particulate contamination from damaging regulators or needle
valves. Each trap is individually activated to insure maximum
reactivity for removing moisture.
l/4”
female Swagelok-type fitting:
cat.#
20685
1/8"
female Swagelok-type fitting:
cat.#
20686
High Capacity IndicatingOxygen Trap
l
Usable with all carrier gases.
l
Ambient operating temperature,100psig operating pressure.
l
Built-in microparticulate frit.
l
Discharge Gas Purity:
02< 0. lppmwhere inlet does not exceed 15ppm.
H2O <0.5ppmwhere inlet does no t exced 10 ppm.
l/4”
tube compression fitting:
cat.#
20623
1/8"
tube compression fitting:
cat.# 20624
Refill cartridge (fits
1/4 or 1/8"
cat.# 20625
Indicating Hydrocarbon Trap for Compressed Air
Many laboratories now runFlame IonizationDetectors (FID)
from oil lubricated air compressors or from house air lines.
Although most of these systems have extensive filtration
devices to remove oil vapors or mist from the air stream,
there is noway to determine if these filters are doing their job
orwhen to change them. The only indication that the filters
are not working iswhen oil contamination reaches the
detector and creates massive baseline disturbances, ghost
peaks, and clogged jets. By then, it is too late and only
laborious solvent rinsing of the gas lines and detector fittings
will restore the stability of the FID.
The Restek Wizards have come up with a novel solution to
this problem. Our Indicating Hydrocarbon Trap changes color
as it absorbs oil vapors. This trap gives advanced warning
should the filters on the compressed air lines ever fail. In
addition to changing color, the trap reduces oil vapor concen-
tration down to five parts per million to prevent gross
contamination of the instrument lines. Availablewithl/s” or
l/4”’
tube compression fittings, these traps are a must for any
lab using oil lubricated air compressors as a gas source for
their FIDs.
l/4”
IndicatingHydrocarbonTrap:
cat.#
20636
l/8”
IndicatingHydrocarbonTrap:
cat.#
20637
20
20
1998
