“…Distillation segregates the molecules in relation to size (430). A combination of the two processes provides a new• approach to petroleum fractionation (76,97,107,124,135,277,353,357,397). For inorganic substances, chromatographic behavior is related to the ionic charge, the degree of hydration, and the atomic dimensions and structure (S3, 182, 881-863, 877, 880).…”