Tozicity assessment of heavy metals in wastewaters using an amperometric biosensor with E.coli
For water quality control, integrated strategy with biological and chemical analysis is a recognized complementary approach1-3. Chemical analysis has limitations related to the inability to evaluate the bioavailability of contaminants or to foresee interactive effects of pollutants in complex water matrices. In this sense, bioassays are becoming popular analytical tools to assess potential risk linked with the presence of chemicals in waters. Many types of bioassays are available, and the test organisms incorporated in these assays include: micro-organisms, plants, invertebrates and fish4. However, many of the above tests are time consuming and the use of higher organisms such a fish as a test species may also be ethically undesirable. The need to have indicator systems which can rapidly assess the toxicity of effluents has led to research into toxicity test which are rapid, easy and inexpensive. In the last few years, interest in bacterial screening tests for assessing toxicity has been increasing. Several bioassays utilizing micro-organisms have been described, such as bioassays based on microbial transformations, on the determination of the activity of microbial enzymes, or on measurement of oxygen consumption using a respirometer. However, up till now, most of the bacterial screening tests used have been based on measurements of luminescence.
Wang Xuejiang He Ying Ding Yuli Li Jianhua
Tongji University,State Key Laboratory of Pollution Control and Resource Reus,Shanghai 200092 Tongji University,State Key Laboratoryof Pollution Control and Resource Reus,Shanghai 200092
国际会议
International Conference on Environment Simulation and Pollution Control(第六届环境模拟与污染控制学术研讨会)
北京
英文
192-193
2009-11-01（万方平台首次上网日期，不代表论文的发表时间）