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Less sample is being injected onto the Agilent 6890 than that defined within Empower - WKB29883

Article number: 29883

SYMPTOMS

  • GC is not injecting desired amount
  • Signal is about 25% lower than expected

ENVIRONMENT

  • Agilent 6890 GC with nanoliter adapter

CAUSE

The nanoliter adapter is not configured.

FIX or WORKAROUND

  1. Confirm that you have a nanoliter adapter installed. A nanoliter adapter is installed if:
    1. There is a yellow tab behind the knob that tightens down the syringe plunger.
    2. The plastic syringe stop has six teeth.
  2. In the Run Samples window, select the syringe icon (or, from the Edit menu, select GC Sample Set Info).
  3. Select the "Use parameters to check injection volume" check box.
  4. Also, select the Nanoliter Adaptor box for the desired inlet, front or rear.
  5. Enter the syringe size and click OK.
  6. From the File menu, select Save Preferences.

The GC should now inject properly.

ADDITIONAL INFORMATION

See related article WKB95118 on using the solvent trip on determining a good injection.

6890A/+GC, 6890N GC

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