一、测定原理 饱和气流气相色谱法测定无限稀释活度系数γ~∞(以下简写为γ~∞)是1977年Leroi等提出的新方法。该法样品用量少,操作简便迅速,对试剂纯化度要求不苛,可方便地测定溶质在难挥发性溶剂中的γ~∞;经我们改进也能测定溶质在易挥发性溶剂中的γ~∞。 本法的测定原理是:恒定流速的惰性气体与釜 First, the determination principle Saturated gas flow gas chromatography determination of infinite dilution activity coefficient γ ~ ∞ (hereinafter abbreviated as γ ~ ∞) is a new method proposed by Leroi et al 1977. The method sample with less dosage, simple and rapid operation, the reagent purification is not demanding, can be easily measured solute in the volatile solvent γ ~ ∞; we can also improve the determination of solute in a volatile solvent γ ~ ∞. The principle of this method is: a constant flow of inert gas and kettle