GC-MS front inlet pressure shutdown

Why in GC-MS front inlet pressure shutdown is showing after one or two samples were run?.

Pleas give me some solutions.

Parents
  • If the inlet is together correctly then it's method based that causing it (too high pressures on the inlet, not enough pressure from the cylinder, too high split on injection, etc)

     

    It could be both...... couple of GC cycles make the inlet nut loose/ not fitting correctly

     

    Or it is mechanical....... septum is on too tight or not tight enough or had too many injections, liner is not sealed correctly, column ferrule not secure or even the wrong ferrule.

Reply
  • If the inlet is together correctly then it's method based that causing it (too high pressures on the inlet, not enough pressure from the cylinder, too high split on injection, etc)

     

    It could be both...... couple of GC cycles make the inlet nut loose/ not fitting correctly

     

    Or it is mechanical....... septum is on too tight or not tight enough or had too many injections, liner is not sealed correctly, column ferrule not secure or even the wrong ferrule.

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