The aim of the current research is to apply DLLME method to
the preconcentration of fungicide carbendazim followed by microvolume
UV–vis spectrophotometric determination. Carbendazim
reduces Fe(III) to Fe(II) which is then reacted with potassium
ferricynide to form a blue product. This compound is extracted
into CCL4 using DLLME technique in the presence of methyltrioctylammonium
chloride (Aliquat 336) as a disperser agent.