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Metrohm 792 Basic IC User Manual

Page 60

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3.3 Calibration

792 Basic IC

51

Ÿ Repeat this procedure for all other integration parameters

until the result satisfies your expectations. Click on

for

each parameter change.

Ÿ Close the

Integration

parameters

window with

.

14 Modify peak allocation

Ÿ Click on

or select

Calibration / Components

from the

Method

menu. The prepared table for the components fluo-

ride, chloride, nitrite, bromide, nitrate, phosphate and sulfate

is displayed below the chromatogram. For all peaks, which

could be allocated unambiguously to a component this table

contains the peak number in the

Peak

column and the reten-

tion time in the

Time

column. In the chromatogram itself, this

retention time is indicated by the cursor (vertical line).

Ÿ If the

Peak

column contains a

0

the peak must be manually

allocated to a component. In this case, insert the peak num-

ber from the chromatogram into the

Peak

column and click

the

Time

field on this row with the mouse. The corresponding

retention time is then inserted automatically as the new time

for this component.

Ÿ For each correctly allocated peak, click on the retention time

in the

Time

column. This time is automatically shown in the

chromatogram by the cursor. If the retention time is not lo-

cated in the area of the middle of the peak, then the value in

the

Time

column should be adapted accordingly. This is done

by clicking on the chromatogram and moving the cursor with

the aid of the cursor keys <Í> and <Î> to the middle of

the peak and reading off the corresponding retention time in