Abstract: A portable gas chromatograph assembly for detecting chemical species comprises a sample collector/injector for introducing a sample into the system, a cryogenically enhanced stationary phase focusing zone for reducing the band width of the introduced sample, one or more resistively heated conductive film clad, fused silica capillary gas chromatograph columns and associated support structure for separating the sample mixture into its individual components, column temperature control electronics, and a detector for registering the sample components.

Abstract: A dosimeter for collecting vapors and gases of hydrazine and of hazardous derivatives of hydrazine such as monomethylhydrazine and 1,1-dimethylhydrazine, employs a housing with a perforated cover. Situated inside the housing is a removable disk on which is coated a solution of citric acid in methanol. The solution initially contains 20% to 30% of citric acid monohydrate dissolved in methanol and the solution is permitted to age for seven or eight days before being coated on to the disk.