A dialkyl-1,1′-bibenzimidazolium salt, consisting of an atropisomeric dication (i.e. featuring a stereogenic axis and thus “inherently chiral”) and an achiral counteranion, is employed as a chiral additive in three commercial ionic liquids, providing successful enantiodiscrimination in voltammetry experiments on screen-printed electrodes (SPEs) with the enantiomers of N,N′-dimethyl-1-ferrocenyl-ethylamine as model chiral probes. Significant differences in redox potentials are observed for the probe enantiomers despite the low concentration (0.01 M) of the chiral additive. The nature of the achiral ionic liquid in which the additive is employed significantly affects the peak potentials and potential differences, but does not alter the enantiomer sequence.

由阻转异构剂（即具有立体轴，因此具有“固有手性”）和非手性抗衡离子组成的二烷基-1,1'-联苯并咪唑鎓盐在三种市售离子液体中用作手性添加剂，可在以N，N'-二甲基-1-二茂铁基-乙胺对映体为模型手性探针的丝网印刷电极（SPE）的伏安法实验。尽管手性添加剂的浓度很低（0.01 M），但对于探针对映异构体仍观察到氧化还原电势有显着差异。使用添加剂的非手性离子液体的性质显着影响峰电位和电位差，但不改变对映异构体序列。