论文部分内容阅读
本文在 Martire 等人以平均场晶格模型处理超临界流体色谱(SFC)保留值方法的基础上,提出修正函数的假设,结合实验数据确定了修正函数的具体表达式为△′=(0.01605+0.02387n_■)ρ~3_■/T,-(0.01382+0.02055n_■)ρ~4_■/T_■。经过修正后的保留值方程可在较大密度范围内(ρ_■:0.705～1.632)定量描述正构烷烃在非极性柱上,超临界流体 CO_2中的保留值变化规律。
Based on the Martland et al. Method of treating SFC retention values with the mean-field lattice model, the hypothesis of amending the function is proposed. The specific expression of the correction function is determined by the experimental data as Δ ’= (0.01605+ 0.02387n_ ■) ρ ~ 3_ ■ / T, - (0.01382 + 0.02055n_ ■) ρ ~ 4_ ■ / T_ ■. The modified retention equation can be used to quantitatively describe the variation of retention of n-paraffins in non-polar column and supercritical CO_2 in a wide range of density (ρ_ ■: 0.705 ~ 1.632).