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Se(IV)和Te(IV)对钝顶螺旋藻的急性毒性和联合毒性
唐全民1, 郑文杰1, 杨 芳1, 白 燕1, 涂 芳1, 郭振江1
暨南大学 化学系
摘要:
用化学品对藻类毒性测试的标准试验方法,分别研究了硫属元素 Se(IV)和Te(IV)单组分对钝顶螺旋藻(Spirulina platensis)的毒性效应,用相加指数法评价了Se(IV)和Te(IV)双组分对螺旋藻的联合毒性效应。结果表明,Te(IV)对螺旋藻的毒性大 于Se(IV),其EC50,96h分别为125.2mg/L和36.1mg/L;Se(IV)和Te(IV)的联合毒性效应为拮抗作用,其 EC50,96h为103.1mg/L。
关键词:  硒  碲  钝顶螺旋藻(Spirulina platensis)  毒性  相加指数法  
DOI：
分类号:
基金项目:教育部重点项目(01141);广州市科技项目(2001-J-010-01)
Acute toxicity and joint toxicity of Se(IV) and Te(IV) on Spirulina platensis
Abstract:
The toxicity of selenium and tellurium to Spirulina platensis was investigated with a standard experiment method of evaluating chemicals’ toxic effects on algae. The joint toxicity of selenium and tellurium to S. platensis was assessed with additive index. The results showed that the toxicity effect of Se(IV) on S. platensis was heavier than that of Te(IV). The values of EC50,96h were 125.2 mg/L and 36.1 mg/L, respectively. The joint toxicity was antagonistic, the value of EC50,96h was 103.1 mg/L.
Key words:  selenium  tellurium  Spirulina platensis  toxicity  additive index  
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