Suppression of interfering ions by using ionic liquid and micelle moieties in spectrofluorimetric analysis of manganese

Authors : ÖZLEM ÖTER, MÜGE AYDIN, KADRİYE ERTEKİN

Pages : 373-384

View : 20 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Eosin-Y exhibits high affinity and emission based spectral response to most of the major ions in water samples. In the present study we performed selective spectrofluorimetric analysis of manganese with eosin-Y in the presence of potential interferents. We employed green chemistry reagents, ionic liquids insert ignore into journalissuearticles values(ILs); and two different micelles, to suppress the effect of conventional cations and anions on the response of eosin-Y. The experimental data revealed that different test moieties caused enhanced analytical response to Mn$^{2+}$. The highest analytical signal of eosin-Y was obtained in the presence of Triton X-100 at a concentration of 2.0 $\times $ 10$^{-3}$ mol L$^{-1}$. Presence of the green chemistry reagents ILs enhanced the limit of quantification for Mn$^{2+}$ 10-fold with respect to the IL-free moieties. The interfering effects of the metal ions of Ca$^{2+}$, Cu$^{2+}$, Hg$^{+}$, Hg$^{2+}$, As$^{5+}$, Li$^{+}$, Al$^{3+}$, Cr$^{3+}$, Co$^{2+}$, Ni$^{2+}$,$^{}$ and the anionic groups were completely suppressed in the presence of the ILs and micelles. Additionally, the tolerance limit of Na$^{+}$ and Zn$^{2+}$ ions increased 6-fold in the presence of IL and sodium dodecyl sulfate. The presented method did not use any harmful conventional solvents and was employed successfully for the detection of Mn$^{2+}$ ions in real water samples.
Keywords : Ionic liquids, micelle, eosin Y, Mn ^ 2