Function and design
multi N/C 2100S (duo, pharma)
36
The eluate blank value is not taken into account when carrying out a calibration. The
calibration is carried out with normal standard solutions in which only the preparation
water blank value is taken into account.
If samples are measured with the so-called eluate method, the software automatically
subtracts the integral of the blank value from the integral of the sample measurement.
I
eff
= I
Raw
– I
Eluate blank value
I
eff
: Effective integral
I
Raw
: Raw integral
I
Eluate blank value
: Eluate blank value
3.7.3
Boat blank value
For solids methods, the user can determine the boat blank value. To do this, the user in-
serts a boat with sample additives in the combustion furnace and analyzes it.
The user can optionally determine the boat blank value separately and enter it in the
control and analysis software.
The boat blank value can change over time and must therefore be determined again be-
fore beginning a measurement series. Otherwise, the software will use the last value.
