Emerson Daniel Danalyzer 1000 - Page 29

MODEL 1000 SEP 2005
DESCRIPTION
1-17
Average response factor is calculated as follows:
Where:
n
RFAVG = Area or height average response factor for component “n”
i
Rf = Area or height response factor for component “n” from the calibration
run
k = Number of calibration runs actually used to calculate the response
factors
The percent deviation of new RF averages from old RF average is calculated in the following
manner:
Where the absolute value of % deviation for alarm has been previously entered by the operator.
Concentration Calculations in Mole % without Normalization
Once response factors have been determined by the GC Controller or entered by the operator,
component concentrations are determined for each analysis by using the following equations:
or
Where:
n
CONC = Concentration of component “n” in mole %
n
Area = Area of component “n” in unknown sample
n
ARF = Response factor of component “n” calculated from area of calibration
sample. Units are area per mole %.
n
Ht = Peak height of component “n” in unknown sample
n
HRF = Response factor of component “n” calculated from peak height of
calibration sample. Units are height per mole %.