Verifying Performance
µECD Checkout
Released: March 2004 6850 Series II GC User Information page 69 of 256
ChemStation setup
1. Bring up the proper on-line instrument for the 6850 to be tested. Make
these settings:
2. Enter the parameter values listed in Table 19.
3. Define the column.
4. Save the method. We suggest using the name ECDCKO.
Path Setting
View/Run Method/Control View/Instrument/
Edit Parameters/Options
Keep instrument keyboard locked after method is
loaded? = No
View/Run Method/Control View/Instrument/
Edit Parameters/Signals
Assign Signal 1 to the detector
Choose Save Data All
Data Rate = 20 Hz
Table 19. µECD Checkout Conditions (Method ECDCKO)
Column and sample
Type HP-1, 30 m × 0.32 mm × 0.25 µm part number 19091Z–413E
Sample µECD checkout 18713-60040
Injection volume 1 µL
Inlets
Temperature 200°C Purged packed
250°C Split/splitless
Oven Track (cool on-column)
80°C PTV (see below)
Inlet pressure 25 psi (constant pressure, helium)
Split/splitless
Mode Splitless
Purge flow 60 mL/min
Purge time 0.75 min
PTV
Mode Splitless
Inlet temperature 80°C
Initial time 0.1 min
Rate 1 720°C/min
Final temp 1 350°C
Final time 1 2 min
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