| 硒与氟离子对美丽猛水蚤的联合毒性 |
| 摘要点击 2715 全文点击 2159 投稿时间：1994-06-30 |
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| 中文关键词 硒 氟 美丽猛水蚤 联合毒性 拮抗作用 |
| 英文关键词 selenium fluoride joint toxicity Nitocra spinipes |
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| 中文摘要 |
| 为了探讨硒氟共存的毒性变化机制,按硒与氟离子1:10、1:20和1:30三个浓度配比进行面与氟对美丽猛水蚤(Nitocra Spinipes)的联合毒性实验。结果表明,硒与氟对美丽猛水蚤的单一毒性:96h Se4+LC50为9.2(7.4—15)mg/L,96h F-LC50为290(284—296)mg/L;硒与氟的联合毒性为桔抗作用。美丽猛水蚤是毒物联合毒性研究的优秀实验生物,毒性单位法及相加指数法都是测定水中毒物联合毒性的有效方法。 |
| 英文摘要 |
| The toxicity of selenium and fluoride ions were determined on bioassay of harpacticoidea copepod,Nitocra spinipes. Median lethal concentration (96h LC50) of selenium and fluoride were 9.2(7.4—15)mg/L and 290 (284—296)mg/L,respectively.Three combinations of selenium and fluoride were tested (1:10, 1:20, 1:30 ratio of selenium to fluoride).The methods of toxic unit analysis and Marking's additive index were used to evaluate the joint toxicity. The results showed that the joint toxicity of selenium with fluoride ions were antagonism on the harpacticoidea copepod. |
