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SELECTIVITY
The selective con guration gives the possibility to be more sensitive on some impurities to make
the chromatography easier and get better results. No need to add a supporting gas or other
devices. The speci c optical lter system is chosen for the application desired.
By having such selectivity, you can reduce analysis time and make fast chromatography. In some
cases, consumables such as traps can be avoided. It becomes a cost e ective solution, mainte-
nance free system and can give better limit of detection by reducing residual background e ect.
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©Copyright 2012 LDetek inc.
ARGON AND HELIUM CARRIER GAS
Having the choice of argon or helium as carrier gas brings the advantage of making easier chroma-
tography con guration. Argon can be cost e ective compared to helium in some cases.
Good sensitivity is also obtained with both carriers giving the possibility to work from ppb to %
application.
ALL IN ONE DETECTOR
The PlasmaDetek can replace many
detectors and get all measurements
with only one module. No need of
doping gas, fuel or other support devi-
ces. Measuring permanent gases and
light hydrocarbons have never been so
easy. Many other gases can be detec-
ted, please contact LDetek for more
information.
• 1 x 10 ports injection valve
• 1 x 6 ports valve for channel selection
• 1 x RT Molecular Sieve 5A 30m x 0.53mm
• 1 x RT Alumina Bond 30m x 0.53mm x 10mm
• Argon or helium carrier
• Carrier Flow : 4 cc/min
• Make-up : 60 cc/min
• Detector : PlasmaDetek two outputs
1 ppm N2 in pure O2 with non-selective detector system
1 ppm N2 in pure O2 with PlasmaDetek
N2 selective configuration
10ppm H2 - O2 - N2 - CH4 - CO - C2H6 - C2H4 - C3H8 - C3H6 - C2H2 - C4H8
-700
-600
-500
-400
-300
-200
-100
0
100
0
2
4
6
8
10
12
14
N2
O2 Bulk
0
50
100
150
200
250
300
350
400
450
500
0
2
4
6
8
10
12
14
N2
O2 Bulk
0
2
4
6
8
10
12
14
16
18
20
H2
O2
N2
CH4
CO
C2H6
C2H4
C3H8
C3H6
C2H2
C4H8