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应用彗星试验技术,通过检测分级与分析软件相结合的方法,研究氨基酚类化合物在鲤鱼体内暴露72h后对其肾脏细胞DNA的遗传毒性。结果表明:3种氨基酚类化合物均能引起不同程度的DNA损伤,其损伤程度随剂量的增加而增加;与溶剂对照组相比,存在显著或极显著差异(P<0 05,P<0 01);同时,4个损伤指标AU,TDNA,MT及MOT显示了较好的一致性;结果也表明3种化合物所表现出的基因毒性差异可能与其结构有关。试验表明鱼类肾细胞彗星试验在环境质量监测中有较大的应用前景。 相似文献
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对氨基酚生产废水处理的研究状况 总被引:11,自引:1,他引:10
介绍了近10年来对氨基酚生产废水处理方法的研究现状及3种主要处理方法-物化法、生物法、化学法,评述了各自的优缺点。 相似文献
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Shinji?ItoEmail author Yasunari?Okada Hirofumi?Hirai Tomoaki?Nishida 《Journal of Polymers and the Environment》2005,13(4):357-363
Poly(acrylic acid)s (PAAs) with various functional groups, such as phenolic hydroxyl, amino, and aldehyde groups, in the side-chains were treated with manganese peroxidase (MnP) prepared from the culture of lignin-degrading white rot fungi. While no change in the Mw of PAA without a functional group was observed after a 24-h MnP treatment, the Mw␣of␣PAA␣with p-aminophenol as side-chains decreased from 90,000 to 59,000, and that with␣o-aminophenol from 70,000 to 26,000. MnP treatment also decreased the Mw of PAA with a p-aminoaniline or aldehyde group. Furthermore, the MnP treatment generated a significant depolymerization of the cross-linked PAA with p-aminophenol from an insoluble polymer to water soluble products. These results suggest that functional groups generating radicals can act as elemental devices and induce degradation of the PAA main chain. 相似文献
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