%0 Journal Article %T In situ pre-concentration and voltammetric determination of trace lead and cadmium by a novel ionic liquid mediated hollow fiber-graphite electrode and design of experiments via Taguchi method %A Zarrin Es'haghi %A Heidari, Taherh %A Ehsan Mazloomi %J Electrochimica Acta %@ 0013-4686 %D 2014