Thermal Conductivity Effect of Carrier Gases on Flame-Ionization Detector Sensitivity

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Science  08 Jul 1966:
Vol. 153, Issue 3732, pp. 172-173
DOI: 10.1126/science.153.3732.172


Data for six carrier gases of different thermal conductivities show a linear correlation between the logarithm of thermal conductivity and detector response. Carbon dioxide with a lower thermal conductivity than helium gives a ninefold increase in detector response.