The solvation parameter model is used to prepare a system map for the retention of volatile organic compounds on the ionic liquid stationary phase 1,12-di(tripropylphosphonium)dodecane bis(trifluoromethylsulfonyl)imide trifluoromethanesulfonate (SLB-IL61) over the temperature range 80–260 °C. Retention is governed by dispersion, dipole-type and hydrogen-bonding interactions each with its own temperature dependence. The exchange of a bis(trifluoromethylsulfonyl)imide anion in SLB-IL60 for a trifluromethanesulfonate anion (SLB-IL61) results in a change in selectivity indicated by an increase in the hydrogen-bond basicity and a decrease in hydrogen-bond acidity of the stationary phase without change in either the cohesion or dipolarity/polarizability of the stationary phases. At high temperatures there are small differences in electron lone pair interactions but these are relatively unimportant in terms of selectivity differences. Since the disclosed chemical structures for SLB-IL60 and SLB-IL61 does not contain obvious hydrogen-bond acid functional groups the modest hydrogen-bond acidity of these stationary phases was unexpected but does not appear to be obviously connected to adsorption sites at the column wall. The polarity number is shown to be a poor indicator of column retention properties for SLB-IL61. Principal component analysis with the system constants as variables indicates that the retention properties of SLB-IL61 are not duplicated by any of the common poly(siloxane) and poly(ethylene glycol) stationary phase chemistries in current use for column preparation. The SLB-IL61 column is closest in separation properties to poly(cyanopropylphenyldimethylsiloxane) and poly(cyanopropylmethyldimethysiloxane) stationary phases with a high percentage of cyanopropyl-containing monomer but the two stationary phase types are not selectivity equivalent.

溶剂化参数模型用于准备系统图，用于在温度范围为80–80℃的离子液体固定相1,12-二（三丙基phosph）十二烷双（三氟甲基磺酰基）酰亚胺三氟甲磺酸盐（SLB-IL61）上保留挥发性有机化合物。 260℃。保留度受分散，偶极型和氢键相互作用的控制，每个相互作用都具有其自身的温度依赖性。SLB-IL60中的双（三氟甲基磺酰基）酰亚胺阴离子与三氟甲磺酸根阴离子（SLB-IL61）的交换导致选择性的变化，这表明固定基的氢键碱性增加而氢键酸度降低固定相的内聚力或偶极/极化率不变。在高温下，电子孤对相互作用的差异很小，但就选择性差异而言，这些差异相对不重要。由于所公开的SLB-IL60和SLB-IL61的化学结构不包含明显的氢键酸官能团，因此这些固定相的适度氢键酸度是出乎意料的，但似乎与柱壁的吸附位点没有明显联系。极性编号显示不足以表明SLB-IL61的色谱柱保留特性。使用系统常数作为变量的主成分分析表明，目前用于色谱柱制备的任何常见的聚（硅氧烷）和聚（乙二醇）固定相化学试剂都不能复制SLB-IL61的保留特性。