The
gas chromatograph was equipped with a differential electrometer,
dual hydrogen flame ionization detectors, and
dual columns. The columns were stainless steel tubes
(l/g inch O.D. X 2 ft.) and were filled with 3% JXR
(a methyl silicone) or 1% OV-17 (a phenyl silicone)
packings on 100-120 mesh Gas-Chrom Q (Applied
Science Laboratories Inc., State College, Pa.).