Combined toxicity of ionic liquids and industrial wastewater on Vibrio qinghaiensis sp.-Q67
离子液体与废水对青海弧菌Q67的混合毒性研究

By selecting two ionic liquids (ILs), 1-benzyl-3-methylimidazolium tetrafluoroborate (IL1) and 1-hexyl-3-methyl-imidazolium bis (trifluoromethylsulfony)imide (IL2), and wastewater (WW) as mixture components, two mixture systems, one between IL1 and IL2 and the other among IL1, IL2 and WW with different concentration ratios (pis), were designed by the uniform design ray procedure. The toxicities of single components and the mixtures to Vibrio qinghaiensis sp.-Q67 (Q67) were determined by the microplate toxicity analysis. The toxicity interaction within mixtures was analyzed by using the concentration addition and independent action as reference models. It was showed that the mixtures between IL1 and IL2 exhibited antagonistic or additive interaction and the combined toxicity (pEC50) was well correlated with the concentration percentage of IL1, while the mixtures among IL1, IL2 and WW displayed synergistic or additive interaction and the combined toxicity (pEC50) was well correlated with the concentration percentage of WW.