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GC-MS Air/water check. %N2 higher when using headspace sampler

Question asked by chemist23 on May 12, 2020
Latest reply on Jun 12, 2020 by yamame


When switching the column from front inlet (direct injection s/sl) to back inlet (headspace s/sl) I am getting a higher Nitrogen reading when performing the air/water check. Is there any obvious reasons for this?