Metrohm 797 VA Computrace Bedienungsanleitung PDF herunterladen (Seite 223)

8.5 Determinations with voltammetric trace analysis

797 VA Computrace – Software

211

6. If Dosing Devices should be used for addition or predose, click

and set the parameters to the desired values (see

Dosing Devices, section 5.2).

7. If necessary, click and limit the Highest current

range

or Lowest current range in the POTENTIOSTAT window

(see Potentiostat, section 3.3).

8. Click and set the parameters on the tabs Deter-

mination

, Voltammetric, Substances, Calculations, Documenta-

tion

und Export (see section 5.2) in the EDIT WORKING

METHOD PARAMETERS

window.

9. Close the EDIT WORKING METHOD PARAMETERS window by

clicking <OK>.

Modify methods for automatic background compensation

1. Click on or MAIN WINDOW / Mode / Determination.

2. Click on or MAIN WINDOW / Window / Working method

specification

to open the WORKING METHOD SPECIFICATIONS

window.

3. Click on or MAIN WINDOW / File / Load method.

4. Select the desired method file *.mth in the OPEN window and

click <OK>. The method is loaded into the WORKING METHOD

SPECIFICATIONS

window.

5. Click the button in the WORKING METHOD SPE-

CIFICATIONS

window and select the Determination tab.

6. Enable the Measure blank option, enter the number of measu-

rements No. of blanks and the Blank purge time.

7. Close the

EDIT WORKING METHOD PARAMETERS window by

clicking

<OK>.

If you start a determination with this modified method, you are first

asked to place the specified number of blank solutions into the

measuring vessel. The resulting blank curve is then automatically

subtracted from all subsequent measured curves.

8.5 Determinations with voltammetric trace analysis

Load a determination

1. Click on or MAIN WINDOW / Mode / Determination.

2. Click on or MAIN WINDOW / File / Load determination.

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