Metrohm 761 Compact IC User Manual

Page 130

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4 Operation

761 Compact IC

120

Number

Row number (read-only).

Peak

Number of the peak in the chromatogram that cor-

responds to the given component. If this field con-

tains a

0

, the peak number must be entered

manually.

Time

Expected retention time of the component in the

calibration run. After a new entry of the peak num-

ber the corresponding retention time is entered

automatically as soon as this field is clicked on

with the mouse.

Wind.%

Identification window of the component. This

value is the maximum allowed difference of the ac-

tual retention time of the component and its ex-

pected retention time, measured as % of expected

retention time. The component will be identified

within its identification window only.

Ref.

Reference component.

The entry

Yes

defines

components as reference components; these en-

sure improved peak identification of the other

Ordi-

nary components

(details see on-line help).

Name

Component’s name (cannot include spaces).

Rows with empty names are excluded from the ta-

ble of components when you leave the component

table editor.

Group

Number of the group to which the components

are allocated. If group numbers

1 are entered

here then a group report can be outputted for

each group; this also contains the intermediate to-

tals for this group. This group report is produced

after the main report table.

Index

Retention index for components with known in-

dex. In the case of an unknown index this value

should be equal to

0

. For index calculation the

user must define index values for at least two

peaks, and all other values will be calculated by

the software using linear or logarithmic approxima-

tion (details see on-line help).

RF

Response factor.

This value corresponds to the

slope of the calibration curve (coefficient k

1

of the

calibration formula).

min C (max C)

Minimum (Maximum) concentration value for

the component. Components whose concentration

leaves the range

min C

max C

are marked in the

peak table by the sign "

!

".

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