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4 calibration, 10 ppm no, And 10 ppm so – Metrohm 732 IC Detector User Manual

Page 68: Fig. 19: ion chromatogram of the calibration so, Standard

background image

3.4 Calibration

732 IC Detector / 733 IC Separation Center

61

+0.000

µµS/cm 0.0 min

full scale: 4.00

µµS/cm

As soon as injection valve A is in the "INJECT" position, the

current time is reset to

"

0.0 min

"

. This marks the start time

of the chromatogram.
The ion chromatogram of the standard is plotted in the next

20 min or so.
Fig. 19 shows an example of a calibration with 5 ppm Cl

,

10 ppm NO

3

and 10 ppm SO

4

2–

.

7

.

00e+005

6

.

00e+005

5

.

00e+005

4

.

00e+005

3

.

00e+005

2

.

00e+005

0

.

00e+005

1

.

00e+005

0

2

4

6

8

10

12

14

16

18

FULL REPORT

Ret Time Component Concentr. Area Height

(Min) Name ppm (uV*Sec) (uV)

-------- --------------- ----------- ---------- ----------

1.758 Chloride 5.000000 2791676.00 416181.718

3.164 Nitrate 10.000000 2405831.75 202204.046

10.575 Sulphate 10.000000 4652037.50 146991.609

Fig. 19: Ion chromatogram of the calibration

SO

4

2–

NO

3

Cl

Standard