Highly Sensitive Luminescence Assessment of Bile Acid Using a Balofloxacin-Europium (Ⅲ) Probe in Micellar Medium
A novel and simple method of luminescence enhancement effect for the determination of trace amounts of bile acid was proposed.The procedure was based on the luminescence intensity of the balofloxacin-europium(Ⅲ) complex that could be strongly enhanced by bile acid in the presence of sodium dodecyl benzene sulfonate (SDBS).Under the optimum conditions,the enhanced luminescence intensity of the system exhibited a good linear relationship with the bile acid concentration in the range 5.0×10-9-7.0×10-7 mol L-1 with a detection limit of 1.3×10-9 mol L-1 (3σ).The relative standard deviation (RSD) was 1.7 % (n=1 1) for 5.0× 10-8 mol L-l bile acid.The applicability of the method to the determination of bile acid was demonstrated by investigating the effect of potential interferences and by analyzing human serum and urine samples.The possible enhancement mechanism of luminescence intensity in balofloxacin-europium(Ⅲ)-bile acid-SDBS system was also discussed briefly.
Balofloxacin Europium(Ⅲ) Bile acid Luminescence
Cai Huan Si Hailin
Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region,Engineering Center for Che School of Chemistry and Chemical Engineering,Shihezi University,Shihezi,Xinjiang 832003
国内会议
长沙
英文
314-323
2013-10-01（万方平台首次上网日期，不代表论文的发表时间）