Agilent Technologies 6850 Series II User Information page 59

3.
4.
5.
6.
25 uV
13.25
13
12.75
12.5
12.25
12
11.75
11.5
0
Figure 6. Sample TCD noise, wander, and drift plot
Chemical checkout
1.
2.
Released: March 2004
Select View/ Data Analysis. Load the data file for the blank run just
completed.
Select Report/ Specify Report. Choose printer and screen.
Select Integration/Integrate.
After integration is completed, Select Report/ Print Report. The
report will list measurements for noise (peak to peak, % standard
deviation, and ASTM) and for drift and wander.
ASTM noise should be < 0.057 display units (25 µV/display unit for
•
TCD).
• Wander or drift (for a 5-minute time window) should be < 0.14 display
units.
2
Press Prep Run on the 6850 keypad to prepare the inlet for splitless
injection. When the message "Ready for manual inj" appears, inject 1 µL of
the checkout sample and press Start on the 6850.
The chromatogram should be similar to
are:
• Area counts for components labeled C14, C15, and C16 should each
be > 73.
• The area counts ratio calculated as C14/C16 should be 1.00 + 0.10.
MDL (C16, pg/mL) = (1,272,000 × Noise) /(Area C16) ≤ 1,000.
•
6850 Series II GC User Information
4 6
Figure
Verifying Performance
8 10
7. The acceptance criteria
TCD Checkout
12
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