GC/MS and FTIR Analyses of the Extracts from an Indonesia Natural Asphalt

Abstract:

An Indonesia natural asphalt was ultrasonically extracted with acetone and carbon disulfide to afford acetone-soluble fraction (F₁), carbon disulfide-soluble fraction (F₂) and residue (i.e., carbon disulfide-insoluble fraction, R₂). F1 was analyzed with GC/MS and all the fractions were analyzed with FTIR. The results show that F1 is rich in hetero atomic compounds (HACs), 2-methyl alkanes (2-MAs) and phthalic acid esters (PAEs). The 2-MAs are a class of important biomarkers, in which the main peak carbons are C24 and C18. According to the proximate analyse, there is a sharply high content of ash (42.62%), which could be responsible for the increase in the yields of R2 in the natural asphalt. By FTIR analysis, the nitrogen- and oxygen-containing compounds, branched alkanes and esters (or lactones, etc.) are important components for the Indonesia natural asphalt.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 562-570
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.562
• Online since: May 2011
• Authors: Ting Yao, Zhi Min Zong, Yu Gao Wang, Xiang En Han, Zhe Wen, Robert Mukasa, Fang Jing Liu, Gui Zhen Gong, Yan Bin Wei, Xian Yong Wei
• Keywords: FT-IR, Functional Groups, Gas Chromatography-Mass Spectrometry (GC-MS), Natural Asphalt, Solvent Extraction

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