Spectrophotometric determination of mercury using vortex-assisted liquid-liquid microextraction

Authors : Tatiana ANTOLOVA, Serhii ZARUBA, Jana SANDREJOVA, Livia KOCUROVA, Andriy B VISHNIKIN, Yaroslav BAZEL, Vasil ANDRUCH, İoseph S BALOGH

Pages : 965-973

View : 24 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A novel method for the determination of mercuryinsert ignore into journalissuearticles values(II); is suggested. The procedure is based on the formation of an ion associate between the bromide complex of Hginsert ignore into journalissuearticles values(II); and Astrazon Red 6B dye and vortex-assisted liquid-liquid microextraction of the ion associate formed, with subsequent spectrophotometric detection. The variables that affect the procedure, such as pH, the concentration of ligand and dye, the type and volume of extraction solvent, and the rate and time of vortex mixing, were optimized. Under optimum conditions insert ignore into journalissuearticles values(pH 2.0, 0.01 mol L$^{-1}$ KBr, 2 $\times $ 10$^{-4}$ mol L$^{-1}$ AR6B, 50 $\mu $L of the extraction mixture toluene:dichlorethane, 4:1, v:v, vortex mixing for 100 s~at 1600 rpm); the linear range was 8 to 200 $\mu $g L$^{-1}$ Hginsert ignore into journalissuearticles values(II);, with the limit of detection at 1.5 $\mu $g L$^{-1}$. The method was applied to the determination of mercury in water samples.
Keywords : Vortex assisted liquid liquid microextraction, mercury, spectrophotometry, green analytical chemistry, water samples