Notes on GCMS Overheads: Data Printouts Mass scan: date: 8/4/96; data file: gs0061 (minus background scan, gs0011) book XX , p. 114 (index XX-4) Ion source 1 Leak 2 75 mbar of nitrogen mixture with light hydrocarbons (mixture number 1 on the overhead with mixtures listed) Peaks: Carbon dioxide: 12 and 44 Nitrogen: 7 and 14 and 28 Methane: 15 and 16 Acetylene: 25 and 26 Ethene: 27 Propane: 29 Ethane: 30 1,3-butadiene: 39 and 54 2-butene: 41 and 56 1-propene: 42 Butane: 43 and 58 Pentane: 57 flight electronics GCMS traces: date: 4/30/96; data file: ms3023; book V, p. 149 (index V-9) Ion source 5 Column: MXT-1701 column 0.512 bar of helium mixture with light hydrocarbons (mixture number 6 on the overhead with mixtures listed) Sample volume 2; VG2 squirt = 250 ms trace 29: propane, ethane trace 56: 1-hexene cc 3/20/96