| 取代苯胺和苯酚类化合物对大型蚤的毒性及PH值对其毒性的影响 |
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| 引用本文： | 于瑞莲,赵元慧.取代苯胺和苯酚类化合物对大型蚤的毒性及PH值对其毒性的影响[J].环境化学,1998,17(5):451-456. |
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| 作者姓名： | 于瑞莲 赵元慧 |
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| 作者单位： | 东北师范大学环境科学系!长春130024 |
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| 基金项目： | 霍英东教育基金资助项目 |
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| 摘 要： | 测定了２４个取代苯胺和苯酚类化合物在不同ＰＨ下对大型蚤的２４ｈ半数抑制浓度２４ｈ－ＩＣ５０。结果表明，苯胺类的毒性随ＰＨ的升高而增大，酚类的毒性随ＰＨ的升高而减小。
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| 关 键 词： | 取代苯胺 苯酚 PH值 大型蚤 毒性 生物监测 |
EFFECT OF pH ON DAPHNIA MAGNA TOXICITY OF SUBSTITUTED ANILINES AND PHENOLS |
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| Yu Ruilian Zhao Yuanhui Yuan Xing Liang Lin.EFFECT OF pH ON DAPHNIA MAGNA TOXICITY OF SUBSTITUTED ANILINES AND PHENOLS[J].Environmental Chemistry,1998,17(5):451-456. |
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| Authors: | Yu Ruilian Zhao Yuanhui Yuan Xing Liang Lin |
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| Abstract: | The toxicities (24-IC50) of 24 substituted anilines and phenols to Daphina magna were measured at different pH (6. 0, 7. 8,9. 0). The results showed that the toxicities of anilines increased with pH, whereas the toxicities of phenols decreased with pH. The effect of pH on phenols toxicities increased as pKa decreased and pH has significant effect on the toxicities of phenols with lower pKa. For instance, pentaphenol toxicity at pH=6. 0 is 45. 71 times as that at pH =9. 0. The toxic mechanisms of substituted anilines and phenols were discussed preliminarily on the basis of the measured data. |
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| Keywords: | substituted anilines and phenols pH Daphnia magna 24h-IC50 toxic mechanism |
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