ELECTRICALLY INSULATED GAS CHROMATOGRAPH ASSEMBLY AND ITS MANUFACTURE

PROBLEM TO BE SOLVED: To provide an electrically insulated gas chromatograph assembly, suitable for a small low-electric power and low-calorie gas chromatograph instrument which operates at high temperatures. SOLUTION: This gas chromatograph(GC) assembly includes a metal capillary GC column 152, and the metal capillary GC column 152 has a ceramic fiber electrically insulating layer 156 wound around the outer surface thereof. A ceramic fiber electrically insulating layer 158 is wound around a heating wire 160 also. A resistance temperature device(RTD) wire 154 is positioned making contact with the outer surface of the insulating layer 156. A composite assembly, including the insulated capillary GC column 152, the insulated heating wire 160 and the RTD wire 154, is combined by causing a ceramic fiber insulating layer 162 wound spirally around the composite assembly to be stuck.