A highly efficient EDS system with polyether-based ILs has been developed.
The polyether ILs exhibit high affinities for benzothiophenes and phenyl sulfides.
The extraction equilibrium can be achieved within a few minutes.
The polyether IL stabilized by NaCl exhibits a remarkable recyclability.
The polyether IL only has a very low mass loss (6.1%) after 64 times of recycles.
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