Metrohm IC Net 2.2 - Manual (Page 193)

7.6 Report output
IC Net 2.2 185
PGF = 1 for an ideal peak with gaussian
shape.
asymmetry Peak asymmetry A
s
is calculated at 1 /
10
of
the peak height as a ratio of width after the
top of the peak w
2
to the width before the
top w
1
.
A
s
= w
2
/ w
1
response factor Coefficient k
1
of the calibration curve.
raw concentration Absolute concentrations (raw quantity) of
the components, calculated as
C
i
= W
i
(R
i
) / V'
Total value for the column is the sum of
concentrations for all components.
concentration% Normalization of concentrations for all
peaks using the NORM value entered in
the
Total % for normalization field (default
setting 100%):
C
i
% = NORM
•
W
i
(R
i
) / ∑ W
i
(R
i
)
Total value for the column equals NORM
for the main table, and the sum of concen-
trations in the group for the group table.
rel. concentration Relative concentration of the component
relative to the standard component, as-
sumes concentration of one of the compo-
nents to be known in advance. The concen-
tration of the component is calculated by
the formula:
C'
i
= W
i
(R
i
) / V' = W
i
(R
i
)
•
C
s
/ W
s
(R
s
) ,
where V' = W
s
(R
s
) / C
s
is the effective (re-
duced) volume of injected sample. The
standard component concentration C
s
is
entered by the user.
Total value for relative concentration col-
umn does not include the concentration of
the standard component.
rel. concentration% Relative concentration percent differs from
concentration% by exclusion of standard
component(s) from summation, so that
sum of all concentrations (excluding stan-
dard) equals NORM.
Total value for the column equals NORM
value for main peak table, and the sum of
concentrations in the group for Group table.