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LD
P1000
Improve
you gas chromatograph measurement
The LDP1000 purifies noble gases, nitrogen or hydrogen
at level that give the best reference for any gas
chromatograph and GC/MS. Its non-evaporable zirconium-
based getter alloy is contained in a 316L Stainless Steel
bloc to ensure high purity and safe operating mode. It
removes impurities down to ppt level (total impurities).
N2
N2
N2
0
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10
Time (min)
1ppm N2 sample gas
Chromatogram with LDP1000
Gas Purifier installed
1ppm N2 sample gas Chromatogram
with no LDP1000 Gas Purifier and 1.2ppm
Nitrogen contamination in carrier gas
1ppm N2 sample
gas Chromatogram
with no LDP1000
Gas Purifier and
0.5ppm Nitrogen
contamination
in carrier gas
Sensitivity improved
Having a contaminated carrier gas, sensitivity of the
impurities that need to be measured will be affected.
By using the LDP1000, you ensure that your GC
has the best reference gas to be able to get the
maximum performance of your detection system.
Contamination brings also an undesired level of
noise that affects as well the detection limit of
your system. The LDP1000 ensures to keep this
signal/noise ratio as high as possible.
It is even worse when the contamination is higher
than the sample to measure. Since the sample
is more pure than the carrier gas, you get a
negative peak for the impurity. The measurement
is completely erroneous and cannot be used.
Two beds of purification
To ensure high purity, the LDP1000 noble gas
version has two beds of purification. The first
stage has an elevated temperature grabbing all
components except some low level hydrogen. At
this temperature, some H
2
can be released from
this bed. The amount of H
2
can be as high as a
few hundred ppb with the use of one stage of
purification only.
By having a second bed of purification operating
at a different temperature, the hydrogen out of
the first stage can then be totally trapped.
Both bed temperatures are controlled by a
microprocessor ensuring stability and efficiency
of the purifier
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400ppb H2 peak sample analysis
with LDP1000 Gas Purifier installed
on Carrier Gas.
400ppb H2 peak sample analysis with a
standard Heated Gas Purifier installed on Carrier Gas.
Features :
Interchangeable getter
Auto Diagnostic LEDs
Serial port
Extended lifetime
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.com
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