Home

Citation: CHENG Shi, WANG Xin, LIU Bao-Lin. Low-field Nuclear Magnetic Resonance Relaxation Characteristics of Fatty Acids with Different Chain Lengths and Degree of Unsaturation[J]. Chinese Journal of Analytical Chemistry, ;2018, 46(2): 281-287. doi: 10.11895/j.issn.0253-3820.171056 shu

Low-field Nuclear Magnetic Resonance Relaxation Characteristics of Fatty Acids with Different Chain Lengths and Degree of Unsaturation

School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received Date: 1 July 2017
Revised Date: 28 November 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (No. 31201365).

The chemical structure of fatty acid has a great influence on the relaxation characteristic of lipid. In this work, the low-field nuclear magnetic resonance (LF-NMR) relaxation characteristics of fatty acids with different chain lengths or degree of saturation were investigated firstly, and then the relaxation characteristics of binary or ternary fatty acid mixtures were studied. The result showed that except acetic acid, the T₂ relaxation time and T_2W decreased as the carbon chain length increased; but as the unsaturated degree increased, these measures all increased. For the binary fatty acid system, the T₂ relaxation time and T_2W of palmitic acid-oleic acid and stearic acid-oleic acid all increased as oleic acid ratio increased. While for the linoleic acid-oleic acid system, only when the oleic acid ratio was above 40%, the relaxation response changed significantly. For the ternary fatty acid system, the T₂ relaxation time of each linoleic acid/oleic acid/stearic acid system increased with the increase of linoleic acid ratio, while the area ratio S₂₁ decreased, and S₂₂ increased. The higher ratio of oleic acid and the change of the peak area ratio were relatively reduced, and the relative increases of T_2W changed more slowly.
- Fatty acid,
- Chain length,
- Degree of unsaturation,
- Low-field nuclear magnetic resonance,
- Relaxation characteristics
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
1. [1]
  Hao Wu , Zhen Liu , Dachang Bai . ¹H NMR Spectrum of Amide Compounds. University Chemistry, 2024, 39(3): 231-238. doi: 10.3866/PKU.DXHX202309020
2. [2]
  Jinkang Jin , Yidian Sheng , Ping Lu , Zhan Lu . Introducing a Website for Learning Nuclear Magnetic Resonance (NMR) Spectrum Analysis. University Chemistry, 2024, 39(11): 388-396. doi: 10.12461/PKU.DXHX202403054
3. [3]
  Haolin Zhan , Qiyuan Fang , Jiawei Liu , Xiaoqi Shi , Xinyu Chen , Yuqing Huang , Zhong Chen . Noise Reduction of Nuclear Magnetic Resonance Spectroscopy Using Lightweight Deep Neural Networ. Acta Physico-Chimica Sinica, 2025, 41(2): 100017-. doi: 10.3866/PKU.WHXB202310045
4. [4]
  Haiyang Jin , Yonghai Hui , Yongfei Zhang , Lijun Gao , Yun Wang . Application and Exploration of Nuclear Magnetic Resonance Spectrometer in Undergraduate Basic Laboratory Teaching. University Chemistry, 2025, 40(3): 245-250. doi: 10.12461/PKU.DXHX202406022
5. [5]
  Zhuoming Liang , Ming Chen , Zhiwen Zheng , Kai Chen . Multidimensional Studies on Ketone-Enol Tautomerism of 1,3-Diketones By ¹H NMR. University Chemistry, 2024, 39(7): 361-367. doi: 10.3866/PKU.DXHX202311029
6. [6]
  Yue Zhao , Yanfei Li , Tao Xiong . Copper Hydride-Catalyzed Nucleophilic Additions of Unsaturated Hydrocarbons to Aldehydes and Ketones. University Chemistry, 2024, 39(4): 280-285. doi: 10.3866/PKU.DXHX202309001
7. [7]
  Lijuan Liu , Xionglei Wang . Preparation of Hydrogels from Waste Thermosetting Unsaturated Polyester Resin by Controllable Catalytic Degradation: A Comprehensive Chemical Experiment. University Chemistry, 2024, 39(11): 313-318. doi: 10.12461/PKU.DXHX202403060
8. [8]
  Xin XIONG , Qian CHEN , Quan XIE . First principles study of the photoelectric properties and magnetism of La and Yb doped AlN. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1519-1527. doi: 10.11862/CJIC.20240064
9. [9]
  Xueyu Lin , Ruiqi Wang , Wujie Dong , Fuqiang Huang . 高性能双金属氧化物负极的理性设计及储锂特性. Acta Physico-Chimica Sinica, 2025, 41(3): 2311005-. doi: 10.3866/PKU.WHXB202311005
10. [10]
  Mei Yan , Rida Feng , Yerdos·Tohtarkhan , Biao Long , Li Zhou , Chongshen Guo . Expansion and Extension of Liquid Saturated Vapor Measurement Experiment. University Chemistry, 2024, 39(3): 294-301. doi: 10.3866/PKU.DXHX202308103
11. [11]
  Xiaohui Li , Ze Zhang , Jingyi Cui , Juanjuan Yin . Advanced Exploration and Practice of Teaching in the Experimental Course of Chemical Engineering Thermodynamics under the “High Order, Innovative, and Challenging” Framework. University Chemistry, 2024, 39(7): 368-376. doi: 10.3866/PKU.DXHX202311027
12. [12]
  Qingying Gao , Tao Luo , Jianyuan Su , Chaofan Yu , Jiazhu Li , Bingfei Yan , Wenzuo Li , Zhen Zhang , Yi Liu . Refinement and Expansion of the Classic Cinnamic Acid Synthesis Experiment. University Chemistry, 2024, 39(5): 243-250. doi: 10.3866/PKU.DXHX202311074
13. [13]
  Shuhui Li , Jing Wang , Haitao Tang , Yingming Pan . A Taste Journey with Sauerkraut. University Chemistry, 2024, 39(9): 59-63. doi: 10.12461/PKU.DXHX202404061
14. [14]
  Meijin Li , Xirong Fu , Xue Zheng , Yuhan Liu , Bao Li . The Marvel of NAD⁺: Nicotinamide Adenine Dinucleotide. University Chemistry, 2024, 39(9): 35-39. doi: 10.12461/PKU.DXHX202401027
15. [15]
  Keying Qu , Jie Li , Ziqiu Lai , Kai Chen . Unveiling the Mystery of Chirality from Tartaric Acid. University Chemistry, 2024, 39(9): 369-378. doi: 10.12461/PKU.DXHX202310091
16. [16]
  Ran Yu , Chen Hu , Ruili Guo , Ruonan Liu , Lixing Xia , Cenyu Yang , Jianglan Shui . 杂多酸H₃PW₁₂O₄₀高效催化MgH₂储氢. Acta Physico-Chimica Sinica, 2025, 41(1): 2308032-. doi: 10.3866/PKU.WHXB202308032
17. [17]
  Hong Zheng , Xin Peng , Chunwang Yi . The Tale of Caprolactam Cyclic Oligomers: The Ever-changing Life of “Princess Cyclo”. University Chemistry, 2024, 39(9): 40-47. doi: 10.12461/PKU.DXHX202403058
18. [18]
  Yuhang Zhang , Weiwei Zhao , Hongwei Liu , Junpeng Lü . 基于低维材料的自供电光电探测器研究进展. Acta Physico-Chimica Sinica, 2025, 41(3): 2310004-. doi: 10.3866/PKU.WHXB202310004
19. [19]
  Zehua Zhang , Haitao Yu , Yanyu Qi . 多重共振TADF分子的设计策略. Acta Physico-Chimica Sinica, 2025, 41(1): 2309042-. doi: 10.3866/PKU.WHXB202309042
20. [20]
  Keweiyang Zhang , Zihan Fan , Liyuan Xiao , Haitao Long , Jing Jing . Unveiling Crystal Field Theory: Preparation, Characterization, and Performance Assessment of Nickel Macrocyclic Complexes. University Chemistry, 2024, 39(5): 163-171. doi: 10.3866/PKU.DXHX202310084

Get Citation

PDF

XML

Metrics

PDF Downloads(8)
Abstract views(1153)
HTML views(144)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return