SBIR PHASE II: Ultrasensitive Elemental Mercury Pollution Monitor

SBIR PHASE II：超灵敏元素汞污染监测仪

• 批准号: 9710569
• 负责人: Scott Hunter
• 金额: $ 30万
• 依托单位: Consultec Scientific, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-15 至 1999-09-01
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9710569&HistoricalAwards=false
• 关键词: SBIR; PHASE; II; Ultrasensitive; Elemental

This Small Business Innovation Research Phase II project concerns the development of novel types of miniature mercury and mercaptan gas detectors using recently developed highly sensitive microcantilever chemical sensors. These sensors are manufactured using standard microelectromechanical systems and integrated circuit microfabrication techniques. During the Phase I project, these sensors were shown to detect mercury vapor concentrations down to 0.5 parts per billion(ppb) and mercaptans down to 50 ppb. Simple and rapid sensor regeneration techniques were demonstrated in the Phase I project, along with inexpensive and effective techniques for the removal of dust and other possible chemical interferents. The Phase II project will construct, and test under field conditions, prototype mercury and mercaptan detectors. The instrumentation will find application in numerous environmental applications requiring real time, sensitive analysis of mercury in air, soil, water, and food, and in mercaptan detection of leaks in natural gas supply lines and appliances. Detectors based on the microcantilever sensor technology will be far more portable and sensitive, and also less expensive than currently available instrumentation. The development of personal monitors and sensors for other vapors based on this technology is also envisioned.

这个小企业创新研究第二阶段项目涉及使用最近开发的高灵敏度微悬臂化学传感器开发新型微型汞和硫醇气体探测器。这些传感器使用标准的微机电系统和集成电路微加工技术制造。在一期项目中，这些传感器被证明可以检测到低至十亿分之0.5 （ppb）的汞蒸气浓度和低至50 ppb的硫醇。在第一阶段项目中展示了简单快速的传感器再生技术，以及廉价有效的去除灰尘和其他可能的化学干扰的技术。第二期项目将建造并在现场条件下测试原型汞和硫醇探测器。该仪器将在许多需要实时、灵敏地分析空气、土壤、水和食物中的汞的环境应用中找到应用，并在天然气供应管道和电器泄漏的硫醇检测中找到应用。基于微悬臂传感器技术的探测器将更加便携和敏感，并且比目前可用的仪器更便宜。还设想了基于该技术的其他蒸汽的个人监视器和传感器的发展。