Abstract

Compositional changes of hydrocarbon fractions affect the physical properties and performance for a specific application. Various techniques, such as liquid chromatography and nuclear magnetic resonance spectroscopy, are normally used for determination of hydrocarbon analysis in petroleum fractions. These techniques provide limited information regarding the hydrocarbon classes. Mass spectrometry offers a unique advantage over these techniques by providing detailed information on hydrocarbon classes present in samples. Commonly used methods in mass spectrometry provide 19, 22, and 33 classes of hydrocarbons in petroleum fractions. These methods are useful in understanding relative changes in composition in the samples during further processing in refineries. The major problem with these methods is validation of results, which poses a challenge to researchers. In the present study, a high-resolution mass spectrometry (HR-MS) technique has been optimized to characterize the petroleum fractions in terms of 33...

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