“…GCEs can be easily modified by ionic liquids to increase their conductivity. 99,145,148,155,157,169,172,173,182,183 Yu et al, reported a voltammetric method for quantification of bisphenol A in real samples with good recovery. A detection limit of 8.3 × 10 −8 mol L −1 was obtained for the modified sensor (carbon ionic liquid electrode), 57 whereas in another study by Chen et al, a very low detection limit (1 × 10 −9 mol L −1 ) was achieved.…”