| 扰流色谱的研究：利用扰流色谱测定气体扩散系数 |
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| 引用本文： | 云希勤 寇登民. 扰流色谱的研究：利用扰流色谱测定气体扩散系数[J]. 南开大学学报(自然科学版), 1995, 28(2): 12-17 |
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| 作者姓名： | 云希勤 寇登民 |
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| 作者单位： | 南开大学化学系 |
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| 摘 要： | 本文分别用返流色谱法和Ｒ（Ｆ）峰法测定了不同温度下有机气体乙烯、丙烯、乙炔在氮气流中的扩散系数和苯、环已烷、乙醇、乙酸乙酯等有机蒸气的扩散系数，讨论了各种操作参量对测量精度的影响，大量测量结果表明，返流色谱法的平均偏差为３．３２％，而Ｒ（Ｆ）峰法为４．４９％。
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| 关 键 词： | 气相色谱，扰流色谱，扩散系数。 |
A STUDY OF FLOW PERTURBATION GAS CHROMATOGRAPHY THE MEASUREMENTS OF THE DIFFUSION COEFFICIENTS |
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| Yun Xiqin, Kou Dengmin, Li Yanhong, Li Hexuan. A STUDY OF FLOW PERTURBATION GAS CHROMATOGRAPHY THE MEASUREMENTS OF THE DIFFUSION COEFFICIENTS[J]. Acta Scientiarum Naturalium University Nankaiensis, 1995, 28(2): 12-17 |
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| Authors: | Yun Xiqin Kou Dengmin Li Yanhong Li Hexuan |
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| Abstract: | The diffusion coefficients is determined by flow perturbation GC in this paper,Values of diffusios coefficients determined by the reversed-flow method are closer to the theoretiques .In this paper, the variation of the diffusion coefficients for the differential temperatures the carrier gas ffow-rate and other factors was studied. |
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| Keywords: | GC GC Flow perturlation diffusion coefficient |
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