| 核磁共振测量乙醇汽油低含水量的实验探索 |
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| 引用本文： | 白怀勇,周格,王殿生.核磁共振测量乙醇汽油低含水量的实验探索[J].大学物理实验,2013,26(1):7-11. |
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| 作者姓名： | 白怀勇 周格 王殿生 |
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| 作者单位： | 中国石油大学(华东),山东青岛,266580 |
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| 基金项目： | 国家级大学生创新训练计划项目(201210425061) |
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| 摘 要： | 为了探索利用核磁共振技术测量乙醇汽油低含水量的方法,测量了不同含水量乙醇汽油的核磁共振横向弛豫时间,发现横向弛豫时间不随含水量的变化而呈现一定规律性的变化,因而尝试加入NH4NO3、NaOH、CuSO4和MnCl2.4H2O来扩大含水量对核磁共振横向弛豫时间的影响。实验结果表明：加入MnCl2.4H2O可使横向弛豫时间随含水量的增加而增加,并拟合出了相应的经验公式。在此基础上提出了乙醇汽油低含水量的核磁共振测量方法,通过测量实例验证了这一方法的有效性和可靠性。
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| 关 键 词： | 乙醇汽油 含水量 核磁共振 横向弛豫时间 |
An Experimental Exploration on the NMR Method for Measuring Low Water Content of Ethanol-gasoline |
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| BAI Huai-yong
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ZHOU Ge
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WANG Dian-sheng.An Experimental Exploration on the NMR Method for Measuring Low Water Content of Ethanol-gasoline[J].Physical Experiment of College,2013,26(1):7-11. |
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| Authors: | BAI Huai-yong ZHOU Ge WANG Dian-sheng |
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| Institution: | (China University of Petroleum,Shandong Qingdao 266580) |
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| Abstract: | The transverse relaxation time of ethanol-gasoline in different water content has been measured in order to investigate the NMR method for measuring ethanol-gasoline water content.The outcome indicates that the transverse relaxation time doesn＇t show a regular change with the increasing water content.For this reason,NH4NO3,NaOH,CuSO4 and MnCl2·4H2O have been used tentatively to expand the influence of ethanol-gasoline water content on transverse relaxation time.The results show that：If MnCl2·4H2O is added to ethanol-gasoline,a quadratic relationship will exist between the transverse relaxation time and the water content.Thus,an innovative method has been found to measure the water content of ethanol-gasoline and the validity and reliability of this method has been verified by experiment. |
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| Keywords: | ethanol-gasoline water content NMR transverse relaxation time |
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