【作者】 肖锋；

【导师】 尹平河； 赵玲；

【作者基本信息】 暨南大学 ， 分析化学， 2006， 硕士

【摘要】 球形棕囊藻和东海原甲藻分别是我国南海和东海海域常见的有害赤潮原因种，其治理方法的研究都是当前赤潮研究的重点。 以2，2二溴-3-次氨基丙酰胺作为除藻剂，对汕头株球形棕囊藻和东海原甲藻进行除藻研究。实验结果显示，该药物对球形棕囊藻和东海原甲藻都具有良好的灭杀和抑制作用。8.0mg／L的DBNPA对细胞密度为1.25×10⁶cells／ml的球形棕囊藻和1.20×10⁶cells／ml东海原甲藻的除藻率分别达到92.5％和89.2％，达到除藻目的。此外我们还初步探讨了这种药物的除藻机理。 通过分析除藻实验后DBNPA作用产物，发现其在除藻实验后部分会转化成Br^-，剩余的药物则在实验条件下迅速地降解，最终降解产物为Br^-、CO₂和NH₃。 实验证明，2，2-二溴-3-次氨基丙酰胺对球形棕囊藻和东海原甲藻都有良好的除藻效果，而且对其它生物影响小，对环境友好，是一种理想的除藻剂，值得深入研究并推广应用。更多还原

【Abstract】 Phaeocytstis globosa and Prorocentrum donghaiense are the familiar red tide species of South-China and East-China. The removal method of red tide is a hot spot in the red tide research domain.In this study, we use the DBNPA as the algaecide and find out it could effectively kill and control the algal. The DBNPA have the algae removal rate of 92.5% with the concentration of 8.0mg/L against the Phaeocytstis globosa(the algae cell density is 1.25×10~6cells/ml ). The DBNPA have the algae removal rate of 89.2% with the concentration of 8.0mg/L against the Prorocentrum donghaiense (the cell density is 1.20×10~6cells/ml). Furthermore, we discuss the removal mechanic of DBNPA.After the removal of algal, DBNPA will partly change into bromide, the residual will degraded quickly and the final product is bromide, carbon dioxide and ammonia.This study shows that the DBNPA can remove the algal efficiently and have little negative effect on non-red tide microbe. It is a ideal algaecide . So it is worth of further investigation and wide application.更多还原