Metrohm 790 Personal IC - Manual (Page 129)

4 Operation
790 Personal IC
120
Mode The two options Overwrite (overwrite the file) or
Append (append to existing file) are available.
Character set The two options Windows (ANSI) or DOS (ASCII)
are available. These settings are essential for
printing of non-English symbols (e.g. ц, д, ь).
Custom program Path and name of the program to be started af-
ter report output. This option enables to transfer
the report to a database, an electronic table or
another application for further processing.
Report elements
If
Quantification method = Custom has been selected, the peak table can
be customized on the user's choice. After clicking the but-
ton, the following columns can be included in the peak table.
number Peak number.
retention time Retention time of the component (in minutes, ir-
respective of the chosen retention units on the
chromatogram graph axes). The total value in
the column is equal to the chromatogram dura-
tion.
halfwidth Width of the peak at half height (in minutes).
height
Height of the peak (in µS/cm). The total value in
this column is the sum of heights for all identi-
fied peaks.
height%
Normalization of peak heights for all peaks us-
ing the NORM value entered in the Total % for
normalization field (default setting 100%):
H
i
% = NORM • H
i
/ H
i
area Area of the peak. Depends on the units on the
X and Y axes of the chromatogram. The total
value in this column is the sum of areas for all
identified peaks (including universal compo-
nent).
area% Normalization of peak areas for all peaks using
the NORM value entered in the Total % for nor-
malization field (default setting 100%):
A
i
% = NORM • A
i
/ A
i
capacity factor The capacity factor k'
i
of the component is
equal to the ratio of its corrected retention time
(t - t
0
) to the void time of the system t
0
:
k'
i
= (t
i
- t
0
) / t
0
Total for this column is equal to the capacity
factor of the last peak of the chromatogram.