?a new problem with front inlet shutdown in high efficient GCMS

 Dear colleagues  

   we encountered a new problem with front inlet shutdown in high efficient GCMS , the inlet itself appear OK before the beginning of run method and still OK during syringe wash and sample drawn but before injection the sample we find that the pressure decreases continuously and no injection is happen then the instrument gives front inlet shutdown.

i tried to restart the GC ,changing the method and unchecked the readiness of the front inlet but frailer to solve this problem.

does any one can declare this problem and how to solve it.

                                         many thanks 

Parents
  • I would check the method, if its splitless, you could have too low of a total flow to maintain inlet pressure. From the description above, if gas saver is being used, it could be adding flow in this case until the GC goes into prep run. If its still an issue, feel free to update us, if it isnt, let us know what resolved the issue.

    Regards

    James

Reply
  • I would check the method, if its splitless, you could have too low of a total flow to maintain inlet pressure. From the description above, if gas saver is being used, it could be adding flow in this case until the GC goes into prep run. If its still an issue, feel free to update us, if it isnt, let us know what resolved the issue.

    Regards

    James

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