荧光传感技术在爆炸物检测方面的应用

Fluorescence Sensing Technique Applied in Detection of Explosives

共轭聚合物具有强的光捕获能力和倍增光学响应性，可用来放大荧光传感信号，为微痕量炸药探测器的发展提供了新的传感模式。基于分子链荧光共轭聚合物传感技术的新型炸药探测器自2005年在美国面世以来，因其具有超高的灵敏度、优良的选择性、不使用放射性物质、几乎不需要预热等特性，已在美军及其盟军中大量装备。荧光共轭聚合物传感技术是一项新兴技术，该技术及其产品目前还未对中国市场开放。着重介绍了荧光聚合物传感技术的原理、关键技术发展现状、在痕量炸药检测方面的应用，以及未来的发展趋势，有助于我国安防领域的工作者对这一技术的了解和府用．

With strong light capture ability and multiply responsiveness, the conjugated polymers could amplify the sensing signal, which provides a fresh sensing mode for the trace explosive detector. Since the appearance in USA （2005）, this new explosive detector based on molecular chain fluorescent conjugated polymer has been equipped for USA army and the allied forces, due to its super sensitivity, excellent selectivity, radioactive free substance and zero preheating time, etc. At present, this technique and the detectors are still not open to Chinese market. This paper puts emphasis on the sensing principle, technique status, applications in trace explosive detection, and its future application, and will be helpful for the security sectors to understand and adopt this new technique.