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7890B GC flame ignition isue

mgupta*9615

Hi, I have a agilent GC 7890B with FID. currently  i am a facing a problem regarding this GC, problem is like that -

all gases supply is ok, no leakage is found in detector portion. i have  cleaned the FID & Jet but flame is not burning.

So kindly suggest me what to do ?

 

Thanks

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    Hi mgupta*9615,

    Please let us know the detector parameters that you are using. In most cases the issue is with the Jet. Jets are hard to clean properly and the replacement should be the next step.

    Regards

    James

     

    Typical parameters

    Air 400 ml/min

    H2 40 Ml/min

    Makeup, with today's detectors you do not need much, 5 to 10 ml/min if needed at all.

    Temperature 300 C

     

    If it doesnt light with the above change the jet, check the column connection for leaks.

Reply
  • 0

    Hi mgupta*9615,

    Please let us know the detector parameters that you are using. In most cases the issue is with the Jet. Jets are hard to clean properly and the replacement should be the next step.

    Regards

    James

     

    Typical parameters

    Air 400 ml/min

    H2 40 Ml/min

    Makeup, with today's detectors you do not need much, 5 to 10 ml/min if needed at all.

    Temperature 300 C

     

    If it doesnt light with the above change the jet, check the column connection for leaks.

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