| 电磁感应式磁化率定性分析装置的原理与结构 |
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| 引用本文： | 孙作达,李晓军,余萍. 电磁感应式磁化率定性分析装置的原理与结构[J]. 分析仪器, 2006, 0(3): 11-16 |
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| 作者姓名： | 孙作达 李晓军 余萍 |
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| 作者单位： | 哈尔滨工业大学市政环境工程学院分析中心,哈尔滨,150090;黑龙江省肿瘤医院,哈尔滨,150040;哈尔滨理工大学应用科学学院物理实验中心,哈尔滨,150001 |
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| 摘 要： | 研制了一种电磁感应式磁化率定性分析装置,介绍了装置的原理和结构。该装置可直接定性分析单组分大分子和同分异构体。利用不同分子的磁化率、磁导率、磁滞等磁谱特性的不同,将样品置于磁场中,通过测量和记录样品所产生附加磁场的互感电动势变量强度,可以对被测样品作定性分析。分析过程对样品没有破坏性,具有操作简单、结果直观,不受质量范围限制的优点。
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| 关 键 词： | 电磁感应 磁化率 磁谱特性 定性分析 |
| 收稿时间： | 2006-05-10 |
| 修稿时间： | 2006-05-10 |
Principle and construction of a qualitative analysis apparatus based on electromagnetically induced susceptibility |
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| Sun Zuoda,Li Xiaojun,Yu Ping. Principle and construction of a qualitative analysis apparatus based on electromagnetically induced susceptibility[J]. Analytical Instrumentation, 2006, 0(3): 11-16 |
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| Authors: | Sun Zuoda Li Xiaojun Yu Ping |
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| Abstract: | A novel qualitative analysis apparatus based on electromagnetically induced susceptibility has been designed and its principle and construction are described. The apparatus can perform qualitative ana the samples composed of single component macromolecules or isomers directly. The differences of d ysis of fferent molecules in magnetic susceptibility, magnetic permeability and magnetic hysteresis are used as basic principles of qualitative analysis. The sample is placed in a magnetic field and the intensity of the induced electromotive force produced by the additional magnetic field of sample is recorded. The analytical process is nondestructive and the method has the advantages of easy to operate and free of mass range limitation. |
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