 |
State-Of-The-Art
Ultra-low level detection is achieved using Atmospheric
Pressure Ionization Mass Spectrometer (APIMS) technology.
The SENSAR TOF 2000 APIMS is engineered for responsiveness,
sensitivity, reliability,
and ease of use. It uses a 'Time of Flight' technique
to detect low level trace atmospheric impurities (H2O,
O2, CH4, CO, CO2, N2, H2) in ultra-high purity gasses
such as
Nitrogen, Argon, Helium, and Hydrogen.
Typically used as a laboratory instrument,
FST has developed the ability to bring APIMS on-site
for critical jobs where specifications surpass the limits
of conventional instrumentation.
Lower detection limits are specified
as three times the standard deviation of the background
divided by the sensitivity.
SENSAR Lower
Detection Limits (Values listed are in PPT)
|
Bulk
Gas/Impurity
|
H2O
|
CO2
|
CH4
|
O2
|
CO
+ N2
|
H2
|
|
Nitrogen
|
20
|
20
|
20
|
30
|
500
|
300
|
|
Argon
|
20
|
20
|
20
|
30
|
50
|
50
|
|
Helium
|
20
|
20
|
20
|
30
|
20
|
50
|
|
Hydrogen
|
40
|
50
|
20
|
500
|
40
|
-
|
|
|
