Understanding Your Agilent ChemStation 153
Calibration
7
Group Calibration
Group Calibration
Group calibration can be applied for compounds where the individual
concentrations are not known but the sum of concentrations for a group of
compounds is known. An example are isomers. Complete compound groups
are calibrated. The following formulae are used:
Calibration
where:
Conc
AB
is the concentration of the compound group consisting of compound A
and B
Response
A
is the area (or height) of compound A
RF
A
is the response factor
For compounds within a compound group we assume equal response factors:
Therefore the concentration of a compound within a compound group is
calculated as follows:
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