NMR spectroscopy as a tool for studying asphaltene composition

Asphaltenes are the most polar oil components with molecular weights between 500 and 1000 Da, which primarily consist of carbons and hydrogens, some heteroatoms, such as nitrogen, sulphur, oxygen and traces of nickel, vanadium and iron. Owing to their extreme complexity, it is almost impossible to c...

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Permalink: http://skupni.nsk.hr/Record/nsk.NSK01001074274/Details
Matična publikacija: Croatica chemica acta (Online)
92 (2019), 3 ; str. 323-329
Glavni autori: Parlov Vuković, Jelena (Author), Novak, Predrag, Jednačak, Tomislav
Vrsta građe: e-članak
Jezik: eng
Predmet:
Online pristup: https://doi.org/10.5562/cca3543
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100 1 |a Parlov Vuković, Jelena  |4 aut 
245 1 0 |a NMR spectroscopy as a tool for studying asphaltene composition  |h [Elektronička građa] /  |c Jelena Parlov Vuković, Predrag Novak, Tomislav Jednačak. 
246 3 |a Nuclear magnetic resonance spectroscopy 
300 |b Ilustr. 
504 |a Bibliografija: 56 jed. 
504 |a Abstract. 
520 |a Asphaltenes are the most polar oil components with molecular weights between 500 and 1000 Da, which primarily consist of carbons and hydrogens, some heteroatoms, such as nitrogen, sulphur, oxygen and traces of nickel, vanadium and iron. Owing to their extreme complexity, it is almost impossible to completely identify all the compounds present in asphaltene samples. Various analytical techniques and approaches were used to characterize asphaltenes but their structure and composition are still a matter of thorough investigations. NMR spectroscopy can reveal useful information on asphaltene molecular architecture and aggregation process. In that respect, one- and two-dimensional NMR techniques have widely been employed. Although NMR spectra of these complex mixtures are difficult to interpret, they still can provide valuable data, especially in combination with statistical methods. Some distinctive examples of using NMR spectroscopy to study asphaltenes are given in this review. 
653 0 |a Sirova nafta  |a Asfalteni  |a Kemijska svojstva  |a NMR spektroskopija  |a Analitičke metode  |a Statističke metode 
700 1 |a Novak, Predrag  |4 aut 
700 1 |a Jednačak, Tomislav  |4 aut 
773 0 |t Croatica chemica acta (Online)  |x 1334-417X  |g 92 (2019), 3 ; str. 323-329  |w nsk.(HR-ZaNSK)000255036 
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