SBIR Phase II: Total Organic Carbon Analysis for On-Site Monitoring

*9800923卡特这个小型企业创新研究第二阶段项目将开发一种用于现场监测应用的微型总有机碳分析系统。该分析技术采用微流控传感器，可可靠、快速地测量水中痕量总有机碳。检测依赖于将溶解和悬浮的有机物光催化矿化为二氧化碳。二氧化碳与碳酸盐物种的快速平衡允许使用电导率测量来定量TOC。第一阶段实验表明，它比市面上的分析仪器更具优势。小型化TOC分析系统的响应时间是商用仪器的四倍；每次测量仅需30秒，而传统仪器为120秒。第二阶段增强功能预计将在2秒内提供总有机碳测量。这种规模的性能提升将是对实时TOC工具的巨大改进。水中有机污染物的快速、可靠和可重复性测量有望在半导体、制药、饮用水、发电和废水工业中得到商业应用。***

*** 9800923 Carter This Small Business Innovation Research (SBIR) Phase II project will develop a miniaturized Total Organic Carbon (TOC) analysis system for on-site monitoring applications. The analytical technique employs a microfluidic sensor for reliable and rapid measurement of TOC trace quantities in aqueous effluent. Detection relies on photocatalytic mineralization of dissolved and suspended organics to carbon dioxide. Rapid equilibrium of carbon dioxide with carbonate species permits quantification of TOC using a conductivity measurement. Phase I experiments showed advantages over commercially available analytical instruments. Response time of the miniaturized TOC analysis system was four times faster than commercial instruments; only 30 seconds per measurement was required versus 120 seconds for conventional instruments. Phase II enhancements are expected to provide TOC measurements in 2 seconds. Performance enhancements of this magnitude would be a quantum improvement in real-time TOC instrumentation. Rapid, reliable, and reproducible measurements of organic contaminants in aqueous effluent are expected to find commercial applications in the semiconductor, pharmaceutical, drinking water, power generation, and waste water industries. ***