光谱学与光谱分析 |
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Raman Spectrometry of Several Saturated Fatty Acids and Their Salts |
LUO Man1, GUAN Ping1*, LIU Wen-hui2, LIU Yan3 |
1. The Key Laboratory of Orogenic Belts and Crustal Evolution of Ministry of Education, Peking University, Beijing 100871, China 2. Exploration and Production Research Institute, SINOPEC, Beijing 100083, China 3. State Key Laboratory of Geo-Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China |
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Abstract Saturated fatty acids and their salts widely exist in the nature, and they are well known as important chemical materials. Their infrared spectra have been studied in detail. Nevertheless, few works on the Raman spectra characteristics of saturated fatty acids and their salts have been published before. Man-made crystals of acetic acid, stearic acid, calcium acetate, magnesium acetate, calcium stearate and magnesium stearate were investigated by means of Fourier transform Raman spectrometry for purpose of realizing their Raman spectra. Positive ions can cause the distinctions between the spectra of saturated fatty acids and their salts. The differences in mass and configuration between Ca2+ and Mg2+ result in the Raman spectra’s diversity between calcium and magnesium salts of saturated fatty acids. Meanwhile, it is considered that the long carbon chain weakened the influence of different positive ions on the salts of saturated fatty acids.
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Received: 2005-06-08
Accepted: 2005-09-11
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Corresponding Authors:
GUAN Ping
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Cite this article: |
LUO Man,GUAN Ping,LIU Wen-hui, et al. Raman Spectrometry of Several Saturated Fatty Acids and Their Salts[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(11): 2030-2034.
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URL: |
https://www.gpxygpfx.com/EN/Y2006/V26/I11/2030 |
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