Loopback Test: (continued)
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In the FILE·OPEN screen, select
CHANNEL 4 at the bottom of the window
and then highl ight the 602.chr sample
chromatogram file and select OPEN.
In the EDIT·CHANNEL 1–
COMPONENTS·LOAD screen, highlight
the 602.cpt sample components file and
click OPEN. Click OK again to close the
COMPONENTS screen. Then repeat for
CHANNEL 4-COMPONENTS.
Software Setup: (continued)
The 602.chr sample chromatogram
that is now displayed on channel four
represents the data that will be fed back
through the
NO
converter.
Starting the Run:
Auto-zero channel 1 by clicking
the 'Z' button. Depress the SPACEBAR
and the chromatogramwill start running.
The data onCHANNEL 1 should appear
to be an exact replica of the data that
was fed intoCHANNEL 4.
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Collecting the Data:
After the run has completed,make
note of the area counts of one of the
peaks by left-clicking on one of the
peaks. Toluene, for example,may have
an area count of 931 .
Repeat the run three or more
times; for each run, record the area
counts of the same peak. Once thedata
has been collected fromat least three
runs; an average area count can be
calculated aswell as the percent relative
standard deviation.
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