碳纳米管电极在分析中的应用与展望毕业设计_计算机程序设计_计算机设计辅导_计算机设计代做_java_安卓_小程序_springboot

摘要：由于碳纳米具有良好的导电性、催化活性和较大的比表面积，用碳纳米管对电极进行修饰可以降低电极反应的过电势，增加峰电流，改善分析性能，提高方法选择性和灵敏度，因此，近年来碳纳米管作为修饰电极材料也已广泛应用于食品化学、生命电分析化学、药物化学、环境监测及其它领域。

食品安全是当今全世界共同关注重大问题，也是各国政府、相关国际组织、学术机构研究热点。食品安全快速检测技术是国家实施环境保护和食品安全计划重要的技术支撑，对于实现社会可持续发展、保障人民健康具有重要意义。然而，传统的环境、食品安全监测方法通常采用离线分析方法，其缺点是分析速度慢、操作复杂且需要昂贵的仪器，不适宜进行现场快速监测和在线分析，因此，研究用于环境和食品中有毒有害污染物的快速、准确、灵敏、方便的检测新方法十分必要，灵敏、快速、安全、经济是当前制约食品安全检测瓶颈，结合现代科技最新成果之一纳米技术及纳米材料，将是食品安全检测发展重要途径。该文综述碳纳米管在食品分析中研究和应用，并对在该领域应用前景进行展望。

关键词：碳纳米管修饰电极食品分析食品安全

Abstract：Carbon nanotubes (CNTs) have led to many new technical developments and applications such as being used for the modified electrodes due to their high chemical stability, high surfaceearea, unique electronic properties, and relatively high mechanical strength. Such properties of carbon nanotubes make them also extremely attractive for the task of electrochemical detection.

Food safety is the common attention major problems around the world, is also related to governments, international organizations, academic institutions, research hot spot. Food safety fast detection techniques is the national implementation of environmental protection and food safety plan important technical support, to realize the sustainable development of the society, safeguard the people’s health is of great significance. However, the traditional environment, food safety monitoring method usually by offline analysis method, the defect is slow, complex operation analysis and need expensive instruments, not suitable site monitoring and rapid on-line analysis, therefore, the study used in environmental and food poisonous and harmful pollutants in the rapid, accurate, sensitive, and convenient testing new method is necessary, sensitive, fast, safe, economic is the current food safety testing bottleneck restriction, and combined with the modern science and technology is one of the latest achievements in nanotechnology and nano materials, will be food safety testing development important way. This review carbon nanotubes in food analysis of research and application, and in the fields.

Key words：CNT；modified electrode；food analysis；food safety

摘要………………………………………………………………………………………………………………… I

Abstract…………………………………………………………………………………………………………. II

第一章绪论…………………………………………………………………………………………………….. 1

1食品安全问题的危害及检测技术………………………………………………………………….. 1

1.1食品污染及其危害……………………………………………………………………………. 1

1.2食品安全检测技术的发展…………………………………………………………………… 2

第二章碳纳米管修饰电极………………………………………………………………………………….. 3

2.1 碳纳米修饰电极…………………………………………………………………………………….. 3

2.1.1 碳纳米前处理……………………………………………………………………………….. 3

2.1.2 碳纳米修饰基底电极方式……………………………………………………………….. 3

2.1.3 碳纳米修饰电极的电化学活性…………………………………………………………. 4