The Development of a High Temperature (1000C) Gas Chromatograph Aeronautical Systems Division, Air Force Systems Command, U.S. Air Force, Wright-Patterson Air Force Base, 1961 - Gas chromatography - 26 pages A GAS CHROMATOGRAPH OPERABLE AT TEMPERATURES TO 1000 C is described. Featuring either isothermal or linear programmed temperature operation, the unit utilizes a novel integrated column and hydrogen flame ionization detector for sensitivity and stability. The stainless steel column is heated by passing high currents (to 120 amperes) directly through the metal. Other wrapped heater columns may also be used. Design considerations, descriptive information and performance data for the instrument are presented. Organic analysis presents no problem, and the detection of organo-metallic compounds appears straight forward. Application to inorganic chloride salts has given anomalous results. The data indicate that reaction of the sample is the primary cause of this behavior, and that proper choice of column materials and sampling techniques will be required for these analyses. (Author). |
