Filter
Top Products
DATA COMPUTATIONS C-5
MON2000
JULY 2010 Analysis Computations
C.3 ANALYSIS COMPUTATIONS
There are two basic analysis algorithms
included in the controller:
• Area Analysis – calculates area under
component peak
• Peak Height Analysis – measures height of
component peak
C.3.1 CONC. ANALYSIS WITH RESPONSE FACTOR
Calibration
The concentration calculations discussed as
follows require a unique response factor for
each component in an analysis. These factors
may be manually entered by an operator or
automatically calculated by calibrating the
system.
where
Equation C-1 Response Factor Calculation
or
ARF
n
area response factor for component “n” in
area per mole percent (%)
HRF
n
height response factor for component “n”
Area
n
area associated with component “n” in cal-
ibration gas
Ht
n
height associated with component “n” in
mole percent in calibration gas
Cal
n
amount of component “n” in mole percent
of calibration gas
Equation C-1 uses an external
standard.
ARF
n
Area
n
Cal
n
---------------
= HRF
n
Ht
n
Cal
n
-----------
=