SBIR Phase I: Rapid Detection of Cyanide

9861065这个小企业创新研究一期项目的重点是开发氰化物检测系统。目前的氰化物检测方法要么非常缓慢，劳动密集，要么不可靠，要么需要昂贵的仪器。所提出的方法将产生一种快速、准确和易于使用的便携式氰化物检测装置。该检测方法的基础是氰化物与特殊设计的表面涂层发生化学反应，并利用表面增强拉曼散射光谱（SERS）对该反应进行检测。通过适当的表面涂层设计，应该可以“调整”检测系统的灵敏度，以适应各种应用。这项技术的商业应用意义重大。有几千个活跃的矿山使用氰化物浸出技术提取金和银，还有超过20万个不活跃的矿山。快速准确地监测氰化物使用的能力将大大提高提取过程的效率，从而节省大量成本；它还将通过监测现有的和不活跃的地雷可能产生的有毒废水，大大促进环境保护。

9861065 This Small Business Innovation Research Phase I project is focused on the development of a cyanide detection system. Current methods for cyanide detection are either quite slow and labor intensive, unreliable, or require expensive, instrumentation. The method proposed should result in a portable cyanide detection unit which is rapid, accurate and easily used. The basis of the detection method is the chemical reaction of cyanide with a specially designed surface coating, and the detection of this reaction using surface enhanced Raman scattering spectroscopy (SERS). Through proper design of the surface coating it should be possible to "tune" the sensitivity of the detection system to a variety of applications. The commercial applications of this technology are significant. There are several thousand active mines utilizing cyanide leach technology to extract gold and silver, and more than 200,000 inactive mines. The ability to rapidly and accurately monitor cyanide use should substantially increase the efficiency of the extraction process, providing large cost savings; it will also greatly facilitate the protection of the environment through monitoring of potentially toxic effluents from existing and inactive mines.