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Analytics Gases - Specialty Gases
|
Detector
|
Carrier Gas
|
Operating Gases
|
Undesired Impurities
|
Gas Purities / Measuring Ranges
|
|
< 100 ppb
|
< 10 ppm
|
> 100 ppm
|
|
TCD
|
H2, He, Ar, N2
|
H2, He, Ar, N2
|
H2, O2
|
-
|
5.5
|
5.0
|
|
FID
|
H2, He, N2
|
H2
|
HC, CO
|
6.0
|
5.5
|
5.0
|
|
Synth. Air
|
HC-free
|
|
ECD
|
H2, He, N2
|
N2, Ar / CH4
|
hal. HC, SF6
|
ECD-Quality
|
|
FPD
|
H2, He, N2
|
H2
|
HC, CO
|
6.0
|
5.5
|
5.0
|
|
Synth. Air
|
HC-free
|
|
HID
|
He
|
He
|
H2, O2
|
7.0 - 6.0
|
6.0
|
6.0
|
|
DID
|
He
|
He
|
H2O, O2, HC
CO, CO2, hal. HC
|
7.0 - 6.0
|
6.0
|
6.0
|
|
AED
|
He
|
He
|
-
|
6.0
|
6.0
|
-
|
|
-
|
N2
|
-
|
6.0
|
5.5
|
-
|
|
-
|
H2, O2
|
-
|
5.0
|
5.0
|
-
|
|
-
|
CH4
|
-
|
4.5
|
4.5
|
-
|
|
MS
|
-
|
He
|
H2O, O2
|
7.0 - 6.0
|
6.0
|
-
|
