内分泌干扰化学物质辛基酚的模拟太阳紫外线辐射
Simulated solar UV-irradiation of endocrine disrupting chemical octylphenol.
作者信息
Neamţu Mariana, Popa Dana-Melania, Frimmel Fritz H
机构信息
Department of Environmental Engineering and Management, Technical University of Iasi, Iasi, Romania.
出版信息
J Hazard Mater. 2009 May 30;164(2-3):1561-7. doi: 10.1016/j.jhazmat.2008.08.024. Epub 2008 Aug 19.
The photolysis of octylphenol (OP) was investigated using a solar simulator in the absence/presence of dissolved natural organic matter (DNOM), HCO(3)(-), NO(3)(-) and Fe(III) ions. The effects of different parameters such as initial pH, initial concentration of substrate, temperature, and the effect of hydrogen peroxide concentration on photodegradation of octylphenol in aqueous solution have been assessed. The results indicate that the oxidation rate increases in the presence of H(2)O(2), nitrate and DNOM. Phenol, 1,4-dihydroxylbenzene and 1,4-benzoquinone were identified as intermediate products of photodegradation of octylphenol, through an HPLC method. In addition, the disappearance of the estrogenic activity of octylphenol during irradiation using YES test was investigated. Based upon the YES test results, there was a strong decrease of estrogenic activity of octylphenol after 8h irradiation in the presence of hydrogen peroxide.
使用太阳模拟器，在不存在/存在溶解态天然有机物（DNOM）、HCO₃⁻、NO₃⁻和Fe(III)离子的情况下，研究了辛基酚（OP）的光解作用。评估了不同参数（如初始pH值、底物初始浓度、温度）以及过氧化氢浓度对水溶液中辛基酚光降解的影响。结果表明，在H₂O₂、硝酸盐和DNOM存在的情况下，氧化速率会增加。通过高效液相色谱法鉴定出苯酚、1,4 - 二羟基苯和1,4 - 苯醌为辛基酚光降解的中间产物。此外，还使用酵母雌激素筛查试验（YES试验）研究了辐照过程中辛基酚雌激素活性的消失情况。根据YES试验结果，在过氧化氢存在的情况下，辐照8小时后，辛基酚的雌激素活性大幅下降。
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