Metrohm IC Net 2.2 - Manual (Page 194)

7 Methods
IC Net 2.2 186
peak amount Absolute amount of substance which is
contained in the sample loop volume. It is
the product of the absolute concentration
C(i)
multiplied to the volume of the sample
loop.
The amount is displayed without unit in
the report, pay attention to the order of
magnitude of the displayed value!
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 = ∑ { (I
i
C
i
) / ∑ C
i
} .
type The types of components are designated
by a one-letter code:
R Reference component (used for peak
identification).
S Standard component.
C Calibration standard in the case it is differ-
ent from the quantification standard.
? Some points of corresponding peak are out
of ADC or detector range – suspicious re-
sult.
! Component concentration is outside of
minimum (
min C ) and maximum limits
( max C ), set in the component table.
p Special component (it has one of the spe-
cial flags checked on in the component
window).
N The component response is outside of cali-
brated region.
In the case of peaks additional letters pre-
cede the component type information, indi-
cating, how peaks are separated from other
peaks, for example:
BD_ Peak that starts on the baseline ( B ) and
ends on the drop line ( D ) that separates it
from another adjacent peak.
BBR Special case of a rider ( R ) peak that is tan-
gentially separated from the main one. A
main peak will have a third letter
H (horse)
in this case.