通过化学键合的方法制备单壁碳纳米管包覆的四氧化三铁(Fe3O4/C N T s)磁性复合纳米粒子。首先用水热法合成磁性Fe3O4纳米粒子,并进行硅烷氨基化处理,羧基化的单壁碳纳米管通过1-(3-二甲基氨基丙基)-3-乙基碳二亚胺(EDC)和N-羟基琥珀酰...通过化学键合的方法制备单壁碳纳米管包覆的四氧化三铁(Fe3O4/C N T s)磁性复合纳米粒子。首先用水热法合成磁性Fe3O4纳米粒子,并进行硅烷氨基化处理,羧基化的单壁碳纳米管通过1-(3-二甲基氨基丙基)-3-乙基碳二亚胺(EDC)和N-羟基琥珀酰亚胺(NHS)交联剂反应修饰到Fe3O4纳米颗粒表面。合成的Fe3O4/C N T s复合纳米粒子具有很高的磁响应度和很好的分散能力,是一种很好的分散固相萃取剂。本研究将合成的Fe3O4/C N T s纳米粒子用于分散固相微萃取富集牛奶中的香精添加剂,并与高效液相色谱分析联用,实现了香兰素和乙基香兰素的快速高效富集和高灵敏度检测,两者的检出限达10μg/L,回收率大于92%。本研究表明,合成的Fe3O4/C N T s磁性复合粒子是一种很好的奶制品中香兰素添加剂的样品前处理富集材料。展开更多
The epidemic of diseases, which impeded the continual and healthy development in aquaculture, has been a thorny problem for long time. Several immunostimulants including glucan, seaweed polysaccharides, chitin, vitami...The epidemic of diseases, which impeded the continual and healthy development in aquaculture, has been a thorny problem for long time. Several immunostimulants including glucan, seaweed polysaccharides, chitin, vitamins C and E have been applied to aquatic animals and showed a good results to enhance the non- specific immune in aquatic commercial animals significantly. In this article, the current research status of the immunostimulants in aquaculture is summarized and application perspective and consideration of the immunostimulants in aquaculture is discussed.展开更多
文摘通过化学键合的方法制备单壁碳纳米管包覆的四氧化三铁(Fe3O4/C N T s)磁性复合纳米粒子。首先用水热法合成磁性Fe3O4纳米粒子,并进行硅烷氨基化处理,羧基化的单壁碳纳米管通过1-(3-二甲基氨基丙基)-3-乙基碳二亚胺(EDC)和N-羟基琥珀酰亚胺(NHS)交联剂反应修饰到Fe3O4纳米颗粒表面。合成的Fe3O4/C N T s复合纳米粒子具有很高的磁响应度和很好的分散能力,是一种很好的分散固相萃取剂。本研究将合成的Fe3O4/C N T s纳米粒子用于分散固相微萃取富集牛奶中的香精添加剂,并与高效液相色谱分析联用,实现了香兰素和乙基香兰素的快速高效富集和高灵敏度检测,两者的检出限达10μg/L,回收率大于92%。本研究表明,合成的Fe3O4/C N T s磁性复合粒子是一种很好的奶制品中香兰素添加剂的样品前处理富集材料。
文摘The epidemic of diseases, which impeded the continual and healthy development in aquaculture, has been a thorny problem for long time. Several immunostimulants including glucan, seaweed polysaccharides, chitin, vitamins C and E have been applied to aquatic animals and showed a good results to enhance the non- specific immune in aquatic commercial animals significantly. In this article, the current research status of the immunostimulants in aquaculture is summarized and application perspective and consideration of the immunostimulants in aquaculture is discussed.