Volumetric Technique Utilizing Molecular Sieves for Determination of n-Paraffin Content of Olefin-Free Petroleum Distillates

Mass Spectrometric Determination of the Ratio of Branched to Normal Hydrocarbons up to C18 in Fischer-Tropsch Product.

“…Molecular Sieve Technique. Three Molecular Sieve techniques were investigated: Simple mixing of the sample and sieve material (9), the vacuum evaporation method developed by Nelson, Grimes, and Heinrich (10) and an elution technique developed by O'Connor and Norris (11). The elution technique, described completely in (11), gave a better separation of normal and branched components (above Cm) in synthetic mixtures and was therefore used in characterizing the Briefly, the technique is as follow's.…”

The Role of Separations in Organic Analysis

“…A Molecular Sieve of 5A. was used to determine the normal paraffin content of olefin-free petroleum distillates (40). is measured and used to quantitate the straight chain hydrocarbon present.…”