A New Low Cost Ammonia Sensor for Environmental Health Monitoring

用于环境健康监测的新型低成本氨传感器

• 批准号: 7998642
• 负责人: Michael T. Carter
• 金额: $ 10万
• 依托单位: KWJ ENGINEERING, INC.
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-17 至 2011-08-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7998642
• 关键词: Address; Air; Amines; Ammonia; Area; Basic Science; Behavior; Benchmarking; Coupled; Detection; Development; Devices; Economics; Electrodes; Electrolytes; Engineering; Environmental Exposure; Environmental Health; Evaluation; Functional disorder; Gases; Government; Humidity; Knowledge; Liquid substance; Measurement; Methods; Mission; Monitor; National Institute of Environmental Health Sciences; Noise; Performance; Persons; Phase; Printing; Production; Public Health; Reaction Time; Science; Signal Transduction; Small Business Innovation Research Grant; Solubility; Surveys; Techniques; Technology; Temperature; Testing; absorption; cost; design; detector; experience; flexibility; human disease; improved; innovation; instrumentation; new technology; novel; programs; public health relevance; sensor

DESCRIPTION (provided by applicant): KWJ Engineering Inc. proposes to combine our years of experience and knowledge of electrochemical sensor design, manufacturing and novel electrolyte technology with modern fabrication techniques to develop a new, ultra low-cost electrochemical sensor for the detection and quantification of ammonia (NH3), with improved performance compared to currently available industrial sensors. We propose a new type of low cost, high performance amperometric gas sensor for NH3 which supports the NIEHS mission to reduce the burden of human disease and dysfunction from environmental causes by understanding each of these components and how they interrelate. Exemplified by the NH3 sensor proposed here, the new technology we are proposing will be able to broadly support the mission of NIEHS by ready adaptability to a wide variety of oxidizable or reducible toxic gases. The extreme low cost and flexibility of the proposed sensors will enable a new microscale technology for detecting and quantifying simultaneously multiple environmental exposure agents, in this case, toxic gases including NH3, amines, CO, SO2, NO2 , NO and HCN. The Specific Aims of the Phase I program will include characterization of NH3 absorption and detection of NH3 using the new electrolyte, development of the fabrication method for the new amperometric sensor platform and testing of NH3 monitoring with the completed sensor. The new sensor will use a novel electrolyte to promote high signal-to-noise, high sensitivity, quantitative measurement of atmospheric NH3 in air, which surpasses what is available with conventional gas sensors. This approach offers several potential advantages including significantly enhanced detection limit and sensitivity, improved stability and interferent rejection and improved sensor lifetime. While amperometric NH3 monitoring is relatively common, the electrolytes used in them have not improved over the years. This presents the opportunity to develop relatively unexplored science and to couple this with a new, technologically innovative sensor to solve critical problems related to public health. The economic potential of a new, much less expensive toxic gas sensor that bridges the cost-performance gap is significant. PUBLIC HEALTH RELEVANCE: The availability of a new general type of toxic gas sensor that offers improved performance and reduced cost will be of great benefit for public health. This would revolutionize and tremendously expand use of gas detectors in diverse applications. New capabilities would become possible as well, including enabling the study toxic gas levels over large areas.

描述（由申请人提供）：KWJ Engineering Inc.建议将我们多年的经验和电化学传感器设计，制造和新型电解质技术的知识与现代制造技术相结合，开发一种新的，超低成本的电化学传感器，用于检测和定量氨（NH3），与目前可用的工业传感器相比，性能有所改善。我们提出了一种新型的低成本、高性能的氨电流型气体传感器，它支持NIEHS的使命，即通过了解这些组件中的每一个以及它们如何相互关联来减轻环境原因造成的人类疾病和功能障碍的负担。以这里提出的NH3传感器为例，我们提出的新技术将能够广泛地支持NIEHS的使命，对各种各样的可氧化或可还原的有毒气体具有良好的适应性。所提出的传感器的极低成本和灵活性将实现用于同时检测和量化多种环境暴露剂的新的微尺度技术，在这种情况下，包括NH3、胺、CO、SO2、NO2、NO和HCN的有毒气体。第一阶段计划的具体目标将包括表征NH3吸收和使用新电解质检测NH3，开发新安培传感器平台的制造方法以及使用完成的传感器进行NH3监测测试。新的传感器将使用一种新型的电解质，以促进高信噪比，高灵敏度，定量测量空气中的大气NH3，这超过了传统的气体传感器。这种方法提供了几个潜在的优势，包括显着提高检测限和灵敏度，提高稳定性和干扰抑制和提高传感器寿命。虽然安培NH3监测相对常见，但多年来使用的电解质没有改进。这为开发相对未开发的科学提供了机会，并将其与新的技术创新传感器相结合，以解决与公共卫生相关的关键问题。一种新的、便宜得多的有毒气体传感器的经济潜力是巨大的，它弥补了成本-性能之间的差距。 公共卫生关系：提供改进的性能和降低的成本的新的通用类型的有毒气体传感器的可用性将对公共健康非常有益。这将彻底改变并极大地扩展气体检测器在不同应用中的使用。新的能力也将成为可能，包括能够研究大面积的有毒气体水平。