An environmentally friendly microextraction method for the determination of cadmium in water samples

Abstract

An environmentally friendly switchable solvent based microextraction method was developed for cadmium ions prior to determination by FAAS. N, N-dimethyl-n-octylamin and 1-(2-Pyridylazo)-2-naphthol were used as switchable solvent and ligands, respectively. Important method parameters such as pH, amount of extraction solvent and ligand, volume of sample and NaOH and foreign ions effects have been optimized. Limits of detection and quantification, preconcentration factor were determined as 0.063 mg L-1, 0.21 mg L-1 and 60, respectively. The validation study of the developed method was carried out by spiking a fixed amount of cadmium to the water samples and determining the recovery. The method was used to determine the cadmium ions content of various environmental water samples.