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Metrohm 792 Basic IC User Manual

Page 64

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3.4 Sample determination

792 Basic IC

55

5 Switch injection valve to "INJECT" position

Ÿ 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#]

.

Ÿ 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.

Ÿ 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

Ÿ 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.