A dispersive liquid–liquid microextraction method coupled to
UV–Vis spectrophotometry was used for preconcentration
and determination of trace amount of Rose Bengal in water
samples. The method is simple, rapid and inexpensive. In this
method, the sample preparation time as well as consumption
of toxic organic solvents was minimized without affecting the
sensitivity of the method. DLLME provides good repeatability,
suitable recovery within a short time. The performanceof this procedure in the extraction of Rose Bengal
demonstrated that this technique is feasible for the quantitative
analysis of Rose Bengal in real samples and could be used in
routine analysis.