Function and setup multi N/C 2100S
40
The eluate blank value is a special blank value for samples from the purity validation or
eluate preparation. It corresponds to the TOC content of the ultrapure water used which
has e.g. been used to extract/eluate swabs.
The eluate blank value is activated in the method and is thus a permanent method
parameter. It can be determined separately and entered in the control and analysis
software multiWin. This value can change over time and must be redetermined before
the start of each measuring series. Otherwise the value last entered will be used.
The eluate blank value is always specified in multiWin standardized to 1ml.
This blank value is not taken into account when carrying out a calibration. The
calibration is carried out with normal standards in which only the preparation water
blank value is taken into account.
If a sample measurement is carried out with a so-called eluate method, the integer of
the blank value is deducted from the integer of the sample measurement (dependent on
the injection volume), see equation (17).
=
(17)
I
eff
… Effective integer
I
raw
… Raw integer
I
EBV
… Eluate blank value
3.6.2 Boat blank value
The boat blank value is determined by introducing an empty boat or a boat with
additives for the sample into the combustion furnace and analyzing it.
The boat blank value can be determined separately and entered in the control and
analysis software multiWin. This value can change over time and must be redetermined
before the start of each measuring series. Otherwise the value last entered will be used.
Eluate blank value
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