DETERMINATION OF CERIUM (IV) USING RHODAMINE 6G FLUORESCENCE QUENCHING
Abstract
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 (lex) and the maximum emission wavelength (lem) are 530 nm and 555 nm, respectively. A good linearity between the relative fluorescence intensity (ΔF) and Ce(IV) was observed in the range ~0.12-1.08 mg/mL. The detection limit was 1.4´10-3mg/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 fluorescence intensity was maximum.
About the Authors
Zh. . Zhao
College of Chemical and Biological Engineering, Lanzhou Jiaotong University
Russian Federation
Russian Federation
L. . Sheng
College of Chemical and Biological Engineering, Lanzhou Jiaotong University
Russian Federation
Russian Federation
B. . Su
College of Chemical and Biological Engineering, Lanzhou Jiaotong University
Russian Federation
Russian Federation
C. . Tao
College of Chemical and Biological Engineering, Lanzhou Jiaotong University
Russian Federation
Russian Federation
W. . Jing
College of Chemical and Biological Engineering, Lanzhou Jiaotong University
Russian Federation
Russian Federation
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Review
For citations:
Zhao Zh., Sheng L., Su B., Tao C., Jing W. DETERMINATION OF CERIUM (IV) USING RHODAMINE 6G FLUORESCENCE QUENCHING. Zhurnal Prikladnoii Spektroskopii. 2017;84(5):835(1)-835(6). (In Russ.)
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