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Chapter 12 User Performance Verification
3. Determine the required injection volume for the calibration.
For Liquids:
For Gases:
Where:
VI = Injection volume in microliters ( L)
C = Concentration in parts per million (ppm)
V
= Total volume of cell and calibration system in liters (2.24 L)
T
d =
Liquid density (g/cm
M = Molecular weight of sample
P
Molar volu
R
4. Press
ENTER
to skip purge. The current concentration (of approximately 0) is displayed.
5. Make the injection of sample into the septum.
6. The analyzer should read the concentration expected from the injection.
Note: Thermo Fisher Scientific offers a calibration kit (see Appendix E) that provides
an alternative method of verification. Contact Thermo Fisher Scientific for more details.
VI
VI
3
)
1
me
of
gas
at
24.5
on the analyzer to continue. After a few seconds press
V
P
M
T
C
x
x
x
3
10
R
d
C
x
V
T
25
C
12-2
again
ENTE-R
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