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7种酚类化学物质对活性污泥的呼吸抑制作用 被引量:3
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作者 古文 周林军 +2 位作者 刘济宁 石利利 陈国松 《生态毒理学报》 CAS CSCD 北大核心 2015年第2期276-282,共7页
苯酚类化学物质是废水中常见的有机污染物,其对活性污泥的毒性数据对于污水处理厂稳定运行和化学品危害性评估具有重要意义。本研究采用活性污泥呼吸抑制试验(209)测定7种酚类化学物质对活性污泥的呼吸抑制作用。结果显示,2,6-二叔丁基... 苯酚类化学物质是废水中常见的有机污染物,其对活性污泥的毒性数据对于污水处理厂稳定运行和化学品危害性评估具有重要意义。本研究采用活性污泥呼吸抑制试验(209)测定7种酚类化学物质对活性污泥的呼吸抑制作用。结果显示,2,6-二叔丁基苯酚和对特辛基苯酚对活性污泥未产生明显的毒性效应;2,4-二氯酚、2-苯基苯酚、4-硝基酚、4-氯酚和对甲酚等5种化学物质都对活性污泥呼吸有不同程度的抑制效应,3 h-EC50值分别为49.7、77.6、102、150.1和462 mg·L-1,构效关系分析结果表明-Cl、-NO2等官能团是导致活性污泥呼吸抑制效应增强的关键因素。在化学品生物降解性测试研究中,要确保有毒化学物质的测试浓度低于EC50值的1/10。 展开更多
关键词 酚类化学物质 活性污泥 呼吸抑制 毒性
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Relationship between Temperaments of Medicinal Plants and Their Major Chemical Compounds 被引量:7
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作者 Mohammad Reza Shams Ardekani Roja Rahimi +2 位作者 Behjat Javadi Leila Abdi Mahnaz Khanavi 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2011年第1期27-31,共5页
Objective: To determine any relationship between temperaments of medicinal plants referred to traditional Iranian manuscripts and their major chemical compounds. Methods: Plants used in traditional Iranian medicine we... Objective: To determine any relationship between temperaments of medicinal plants referred to traditional Iranian manuscripts and their major chemical compounds. Methods: Plants used in traditional Iranian medicine were categorized based on their major chemical compounds including alkaloids, phenolic compounds, and essential oils. Their temperaments were extracted from traditional herbal pharmacopeias of Iran. The possible relationship between major chemical compounds and temperaments of each group were evaluated. Results: Plants containing phenolic compounds as their major constituents are hot and dry temperaments except those contain tannins with cold and dry temperaments. Plants containing essential oils have hot and dry temperaments except those whose major essential oils with alcoholic structure which have cold and dry temperaments. Alkaloid-containing plants have cold and dry or hot and dry temperaments based on their alkaloidal structures. Conclusions: There is a close relationship between major chemical compounds of medicinal plants and their temperaments mentioned in traditional Iranian manuscripts. 展开更多
关键词 traditional Iranian medicine temperament alkaloids phenolic compounds volatile oils
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