Abstract
Abstract 1 H and 13 C nuclear magnetic resonance (NMR) spectroscopy is well‐known recognized technique for establishing structural formulas, spatial and electronic structure of organic compounds which can be either first synthesized or isolated from natural raw materials. In recent years, there has been a growing interest in using NMR spectroscopy for studying various objects in petroleum chemistry. In the case of oil and petroleum products containing typically hundreds of compounds, mainly hydrocarbons, an important feature of NMR spectroscopy is a strict correlation of integral intensities of separate signal groups in certain chemical shifts ranges in 1 H and 13 C NMR spectra with the content of the corresponding molecular fragments. The modern NMR spectroscopy technique is based not only on increased sensitivity and resolution but also applies two‐dimensional methods, which provide additional information on the composition of the studied samples.
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