Metrohm 757 VA Computrace - Manual (Page 154)

7 How to ...?
757 VA Computrace – Software
144
12. Transfer the desired sample amount into the sample vessels.
Place the sample vessels at the odd positions on the sample
rack of the 813 Compact Autosampler. For each sample ves-
sel, place a vessel filled with rinsing solution at the following
even position (volume rinsing solution = volume sample solu-
tion).
13. Click on or MAIN WINDOW / Window / Monitor to open the
MONITOR window.
14. Start the measurement by clicking the icon in the MAIN
WINDOW or the button in the MONITORING window.
15. Follow the instructions in the appearing message windows.
Recalculate an existing determination
1. Click on or MAIN WINDOW / Mode / Determination .
2. Click on or MAIN WINDOW / File / Load determination .
3. Select the desired determination file
*.dth
in the
OPEN
window
and click <OK> . The determination is loaded into the DETER-
MINATION CURVES window.
4. Click on or MAIN WINDOW / Window / Results to open the
RESULTS window.
5. Click on or MAIN WINDOW / Window / Determination curves
to open the DETERMINATION CURVES window.
6. Arrange the subwindows in the DETERMINATION CURVES win-
dow so that the list of curves, the determination curves and
the calibration curves are visible.
7. If desired, select one or several (Ctrl + Click) objects in the
list of curves and click on or Show selected... of the con-
text sensitive menu to show only the selected determination
curve(s).
8. If desired, zoom the interesting area in the determination
curves subwindow.
9. Click on or DETERMINATION CURVES / Edit / Determination
method parameters to open the EDIT DETERMINATION METHOD
PARAMETERS window.
10. Modify the parameters (e.g. Sample amount , Cell volume , Peak
position , baseline parameters, standard solution concentra-
tions, calculation parameters) to the desired values on the
tabs
Specifications , Determination , Substances and Calculations
(see section 5.2).