Operation
multi N/C pharma HT
68
5.4
Carrying out calibration
5.4.1
Preparing and starting calibration
The control and analysis software provides the option to adjust the analysis to the indi-
vidual measuring task by selecting the method. An ideal measurement with its corre-
sponding method requires its own calibration for each analysis parameter and each
measuring channel. Not all parameters in a method need necessarily be calibrated.
Three calibration functions can be stored for each parameter in a method.
Carry out the calibration as follows:
}
Select the sample feed type in the System state window:
[manual] or [Sampler].
ü
The analyzer is initialized.
}
Open the Measurement |Calibration menu option.
}
In the query that follows, select either the method to calibrate or a preexisting cali-
bration table.
}
Carry out the software instructions that follow.
ü
The Calibration - Data of new calibration window opens.
Figure 46Data for new calibration
}
Select the calibration type in the Calibration Parameters group:
– Preferably, perform Multiple point calibrations with a
constant sample volume
and variable concentrations. The volume set in the method is entered automati-
cally in the constant sample volume input field. Only change the presets if the in-
jection volume of the standard solutions differs from the volume set in the
method.
}
For calibrations with a
constant concentration
, enter the concentration of the stan-
dard solution in the input field.
}
Enter the number of calibration points in the Number of standards input field.
}
Select the analysis parameters of the loaded method to calibrate in the Analysis pa-
rameters field.
– Activate the IC and TC parameters individually for calibration of the NPOC plus
parameter and higher concentrations of c > 0.5 mg/l.
