期刊论文

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

中文

环境与健康杂志

1001-5914

2017

34

1

75-77

10.16241/j.cnki.1001-5914.2017.01.018

1201430177:广州市市属高等学校科技项目

本校为其他机构

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0.02～1.40 μg/ml线性范围内,该方法所得BPA的回归方程为△F=1 708.4c+33.2,r=0.999 8.该方法的检出限为0.014 μg/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 ...