Gasoline Impurity analysis
Petroleum hydrocarbons are major constituents of gasoline, diesel, and a variety of solvents. Fluid catalytic cracking of petroleum fractions in oil refineries yields three categories of crude oil: paraffinic, naphthenic and aromatic. The mixture can be separated by distillation and gravity. Its composition consists of carbon, hydrogen, sulphur, Nitrogen, oxygen, metals as complexes and salts. Some of its constituents are considered as an impurity that needs to be removed for environmental or chemical reasons. Measurement of impurities in gasoline is available using tape-based method.