Metrohm IC Net 2.0 - Manual (Page 151)

7.6 Report output
IC Net 2.0 143
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
) /
д д
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 con-
centration 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
(reduced) 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 ta-
ble.
index
Linear or logarithmic retention index for
identified components.
Total value for the column is a weighted in-
dex average with absolute concentration as
weight.
I =
д д
(I
i
C
i
) /
д д
C
i
.