| 光谱学与光谱分析 |
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| The Identification of Several Saturated Fatty Acids and Their Salts by Means of Infrared Spectrometry |
| LUO Man1,GUAN Ping1*,LIU Wen-hui2 |
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 |
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Abstract It is considered that saturated fatty acids and their salts may be potential hydrocarbon-generation matters in carbonate rocks. However, there is no effective method to distinguish them from natural sediments, making recognizing their distribution in sediments a challenge. Formic acid, acetic acid, stearic acid, calcium formate, calcium acetate, magnesium acetate, calcium stearate, and magnesium stearate from some chemical plants were investigated by means of Fourier transform infrared spectroscopy. Their infrared spectra were obtained and the distinctions of the infrared spectra between saturated fatty acids and their salts were studied in detail. The differences in the group’s electron-releasing ability, molecular reduced mass, ion configuration and the length of carbon chain can cause wavelength shifts of infrared absorption peaks of the saturated fatty acids and their salts. The research provides a method for the identification of saturated fatty acids and their salts in samples from nature.
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Received: 2005-06-16
Accepted: 2005-10-08
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Corresponding Authors:
GUAN Ping
E-mail: pguanl@pku.edu.cn
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| Cite this article: |
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LUO Man,GUAN Ping,LIU Wen-hui. The Identification of Several Saturated Fatty Acids and Their Salts by Means of Infrared Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(02): 250-253.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I02/250 |
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