Metrohm 792 Basic IC User Manual
Page 64
3.4 Sample determination
792 Basic IC
55
5 Switch injection valve to "INJECT" position
Click on the
button of the 792 icon in the system
window to switch the injection valve to the "INJECT" position.
At the same time, the data recording is started automatically.
The status bar of the chromatogram window shows the mes-
sage
Measure
, the
SYSTEM STATE
window shows the message
INJECT done [792COM#]
.
When the analysis time of 16 min set in the method has
expired data recording is automatically stopped and the
chromatogram is integrated and evaluated. In the chroma-
togram window the peaks which have been found are num-
bered and the baseline drawn. In the
SYSTEM STATE
window
the message
Finished [792COM#]
appears. It is now possible
to record further samples with the same system.
At the end of the determination, the chromatogram window is
closed and the chromatogram is saved automatically. The file
name is generated automatically and contains date and time
in a coded form:
1
st
numeral:
Alphabetical code for year
(e.g. j = 1999, k = 2000, l = 2001, etc.)
2
nd
numeral:
Code for month
(1...9 = Jan....Sept., a...c = Oct....Dec.)
3
rd
+4
th
numeral: Day (01 ... 31)
5
th
- 8
th
numeral: Time (hh:mm)
6 Open chromatogram
Click on
or
File / Open / Chromatogram
in the main win-
dow. Select the chromatogram file
*.chw
just recorded and
click on
. The chromatogram window is opened where
the found peaks are numbered and the baselines are drawn
in.