【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％。更多还原

【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.更多还原