Real Time Analyzers for Gases, Particles and Metals

气体、颗粒和金属实时分析仪

• 批准号: 0518652
• 负责人: Purnendu Dasgupta
• 金额: $ 38.57万
• 依托单位: Texas Tech University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2007-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0518652&HistoricalAwards=false
• 关键词: Real; Time; Analyzers; Gases; Particles

With support from the Chemistry Research Instrumentation and Facilities - Instrument Development (CRIF-ID) Program, Purnendu Dasgupta in the Departments of Chemistry at Texas Tech University will develop miniaturized instrumentation for real time analysis of gases, particles and metals in ambient air. The instrument modules consists of (a) a miniature membrane-based denuder that collects and removes soluble gases, coupled with a novel self-filtering particle collecter where the collected gas and particle extracts are separately analyzed by a capillary scale anion chromatograph and a ammonia/ammonium detector; (b) a capillary scale anion chromatograph and a capillary scale cation chromatograph; (c) a metal determination system; and (d) a spectroscopic absorption based particle sensor in which deposition of particles occur according to their size. This instrumentation will have a significant impact in the areas of atmospheric chemistry and national security. For example, it will allow communities to rapidly and easily determine local sources of air pollution. The highly sensitive protein aerosol detector can provide an early warning system in the event of a bioterrorism attack.

在化学研究仪器和设施的支持下 - 仪器开发（CRIF -ID）计划，德克萨斯理工大学化学系的Purnendu Dasgupta将开发小型仪器，以实时分析环境空气中的气体，颗粒和金属的实时分析。 该仪器模块由（a）一个基于微型膜的非胶质组成，该甘露仪收集和去除可溶性气体，再加上一种新型的自我过滤粒子收集器，在其中通过毛细管阴离子层仪和氨/氨检测器分别分析收集的气体和颗粒提取物； （b）毛细管色阴离子色谱和毛细管阳离子色谱仪； （c）金属测定系统； （d）基于光谱吸收的颗粒传感器，其中颗粒的沉积根据其大小进行。 该仪器将对大气化学和国家安全领域产生重大影响。 例如，它将允许社区快速，轻松地确定空气污染的当地来源。 高度敏感的蛋白质气溶胶检测器可以在生物恐怖袭击时提供预警系统。