The interaction between rhodamine 6G (Rh6G) and cerium sulfate was studied by the fluorescence quenching method. In a sulfuric acid medium, the interaction of Ce(IV) with Rh6G results in Rh6G fluorescence quenching. The maximum excitation wavelength (λex) and the maximum emission wavelength (λem) are 530 nm and 555 nm, respectively. A good linearity between the relative fl uorescence intensity (ΔF) and Ce(IV) was observed in the range ~0.12–1.08 μg/mL. The detection limit was 1.4 × 10–3 μg/mL. The optimum reaction conditions, influencing factors, and effect of coexisting substances were investigated in the experiment. We found that the concentration of Rh6G was 3.2 × 10–6 mol/L, and the fl uorescence intensity was maximum.
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Abstract of article is published in Zhurnal Prikladnoi Spektroskopii, Vol. 84, No. 5, p. 835, September–October, 2017.
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Zhao, Z., Sheng, L., Su, B. et al. Determination of Cerium (IV) Using Rhodamine 6G Fluorescence Quenching. J Appl Spectrosc 84, 900–905 (2017). https://doi.org/10.1007/s10812-017-0562-8
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DOI: https://doi.org/10.1007/s10812-017-0562-8