Determination of bisphenol A using a flow injection inhibitory chemiluminescence method.
A new flow injection chemiluminescence (CL) method has been developed for the determination of bisphenol A (BPA), based on the inhibitory effect of BPA on the chemiluminescence reaction between luminol and potassium hexacyanoferrate. Under optimum conditions, the decrease in CL emission intensity was linear with BPA concentration in the range 8.0 x 10(-7)-1.2 x 10(-5) mol/L, and the detection limit was 3.1 x 10(-7) mol/L. The relative standard deviation (RSD) of 11 replicate measurements was 2.6% for 2.0 x 10(-6) mol/L BPA (n = 11). The sampling frequency was calculated to be ca. 120/h. This method has been successfully used to determine the content of BPA in aqueous solution of polycarbonate materials. A brief discussion on the possible chemiluminescence reaction mechanism is presented.
Wang
Shuhao
S
College of Environmental Science and Engineering, Donghua University, Shanghai 200051, People's Republic of China. shuhaowang@sohu.com
Wei
Xinting
X
Du
Lingyun
L
Zhuang
Huisheng
H
D001559:Benzhydryl Compounds; D017022:Flow Injection Analysis / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D006878:Hydroxides / Q000494:pharmacology; D008163:Luminescent Measurements / Q000379:methods*; D008165:Luminol / Q000494:pharmacology; D010636:Phenols / Q000032:analysis*; D017680:Potassium Compounds / Q000494:pharmacology; D000098826:Bisphenol A Compounds
D001559:Benzhydryl Compounds; D006878:Hydroxides; D008165:Luminol; D010636:Phenols; D017680:Potassium Compounds; C006780:bisphenol A; D000098826:Bisphenol A Compounds; C029943:potassium hydroxide