Neamţu Mariana, Frimmel Fritz H
Water Chemistry, Engler-Bunte-Institute, University of Karlsruhe, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany.
Water Res. 2006 Dec;40(20):3745-50. doi: 10.1016/j.watres.2006.08.019. Epub 2006 Oct 9.
The photodegradation of bisphenol A (BPA) in pure water, surface water and wastewater effluents was studied. The effect of different hydrogen peroxide concentrations on degradation was investigated. The rate of BPA photolysis in the presence of hydrogen peroxide was lower in wastewater effluent than in purified water. Phenol, 1,4-dihydroxylbenzene and 1,4-benzoquinone were identified by means of HPLC as intermediate products of the photodegradation of bisphenol A. In addition, the disappearance of the estrogenic activity of bisphenol A during irradiation was shown by the YES test. Based upon the YES test results, there was a strong decrease of estrogenic activity of parent compound after 120 min irradiation in the presence of hydrogen peroxide.
研究了双酚A（BPA）在纯水、地表水和废水排放物中的光降解情况。研究了不同过氧化氢浓度对降解的影响。过氧化氢存在下双酚A在废水排放物中的光解速率低于在纯水中的光解速率。通过高效液相色谱法（HPLC）鉴定出苯酚、1,4 - 二羟基苯和1,4 - 苯醌为双酚A光降解的中间产物。此外，通过酵母雌激素筛查试验（YES试验）表明，双酚A在辐照过程中雌激素活性消失。基于YES试验结果，在过氧化氢存在下辐照120分钟后，母体化合物的雌激素活性大幅下降。
