水中痕量双酚A的罗丹明6G-动力学共振荧光测定法  

Kinetic-resonance fluorescence determination of trace bisphenol A residue in water based on rhodamine 6G

作　　者：易艳妮[1] 唐律[2] 陈浩波[3] 李节康 徐梦媛[2] 李贵荣[2] 

机构地区：[1]广州医科大学公共卫生学院,广东广州510182 [2]南华大学公共卫生学院 [3]中国科学院广州能源研究所

出　　处：《环境与健康杂志》2017年第1期75-77,共3页Journal of Environment and Health

基　　金：广州市属高校科技项目(1201430177)

摘　　要：目的建立环境水样中双酚A(bisphenol A,BPA)的罗丹明6G-动力学共振荧光测定法。方法向水样品中依次加入0.1 mol/L硫酸溶液0.6 ml,1.0×10-4 mol/L罗丹明6G溶液0.4 ml,0.1 mol/L溴酸钾溶液0.5 ml,70℃水浴加热12 min,流水冷却3 min,在524.2 nm处测定共振荧光强度。结果在0.02~1.40μg/ml线性范围内,该方法所得BPA的回归方程为ΔF=1 708.4c+33.2,r=0.999 8。该方法的检出限为0.014μg/ml,回收率为97.5%~106.5%,RSD为3.9%~5.0%。结论该方法简单、方便、灵敏,适用于饮用水中BPA的测定。Objective To establish a method of kinetic-resonance fluorescence based on rhodamine 6G for the determination of bisphenol A（BPA） in water sample. Methods In water sample,0.6 ml H_2SO_4 solution of 0.1 mol/L,0.4 ml Rh 6G solution of1 ×10^（-4）mol/L,0.5 ml KBrO_3 solution of 0.1 mol/L was added in turn,the resonance fluorescence of BPA was determined at524.2 nm after reaction 12 min at the temperature of 70 ℃ heating in water bath and water cooling for 3 min. Results The linear range of the method was 0.02-1.40 μg/ml,the linear regression equation was ΔF =1 708.4c ＋33.2,with the correltion coefficient of 0.999 8 for BPA. The limit of detection of the method was 0.014 μg/ml,the rates of recovery were 97.5%-106.5%and RSDs were 3.9%-5.0%. Conclusion This method is simple,convenient, sensitive and applicable to accurate determination of bisphenol A residue in water.

关 键 词：双酚A 罗丹明6G 动力学共振荧光法 

分 类 号：O657.6[理学—分析化学]