期刊论文

中文

环境科学

0250-3301

2010

31

7

1596-1600

10.13227/j.hjkx.2010.07.027

国家高技术研究发展计划（863）项目（2009AA05Z115）； 广东省自然科学基金项目（07006759）； 广东省科学院科技创新引导项目（CX200704）；

本校为第一机构

构建了单室微生物燃料电池(air-cathode microbial fuel cell，ACMFC)型生物毒性传感器，以含重金属离子(Cd~(2+)、Cu~(2+))人工配水为检测对象，分析了有毒物质对检测仪的抑制率与有毒物质浓度的线性关系．结果表明，①单室MFC型生物毒性传感器结构简单，操作方便，灵敏度较高，可用于水体重金属离子(Cd~(2+)、Cu~(2+))生物毒性的快速检测；②在实验条件下，该生物毒性传感器检测时间4 h，清洗时间2~10 min，恢复时间4 h；③检测结果显示，实验室自配Cd~(2+)、Cu~(2+)及其混合液IC_(20)。值分别为 0．6、0．8和0．25 mg/L，有毒物质浓度与MFC产电量的抑制率呈显著正相关，相关系数分别为0．996...

The principle of the detector is based on the effect of microbial toxicity of water sample on the electricity generation in microbial fuel cell (MFC). The performance of the MFC-type biotoxicity detector was evaluated with the synthetic water containing heavy metals of Cd2+ and Cu2+. The experimental results demonstrated that: (1) relative to the conventional methods, the MFC-type detector is easy to operate, and suitable for on-line measurements with high sensitivity; (2) it only requires 4 h to complete measurements, and can get ready for next measurement within 4 h; (3) there is a significa...