Metrohm viva 1.0 (process analysis) - Manual (Page 31)

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2 General program functions
viva 1.0 (for Process analysis)
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￭ Variation index only after the measuring command has been
called up with CALL VA
A variation index is attributed only to those peak evaluation results for
which the measuring command has been called up by a CALL VA call
command.
￭ Increasing the variation index with ADD STD
The results of the peak evaluation of a measuring command are
assigned a variation index, which is increased with the corresponding
ADD STD or ADD SAMPLE DT command.
￭ Increasing the replication index with loops or several measur-
ing cycles
The results of the peak evaluation of a measuring command are
assigned a replication index, which is increased with repetitions
because of loops (LOOP command) around a measuring command or
because of several measuring cycles within one CVS command.
￭ Both indices begin with 1
Variation index and replication index both start with 1.
￭ Increasing the variation index sets the replication index to 1
Increasing the variation index automatically causes the replication index
to be reset to 1.
￭ Increasing the variation index only if the previously added
solution contains at least one substance to be determined
When an ADD STD command is run through, the substances con-
tained in the solution are identified on the basis of the name of the
standard solution in the standards table. The respective measuring
command is subsequently determined in the table of substances and
the variation index is increased by 1 when this measuring command is
run through.
￭ Increasing the variation index only once if two substances are
added to two separate solutions
If two substances are added to two different solutions with two differ-
ent ADD STD-type commands and detected in the same measuring
command, then the variation index is increased only once for this mea-
suring command.
￭ Increasing the variation index for all measuring commands
when the same substance is added
If a standard solution containing a substance that is to be determined
in different measuring commands is added using the ADD STD com-
mand, then the variation index for this substance is increased in all
measuring commands.