Engineering Research Equipment: Membrane Introduction Mass Spectrometer

工程研究设备：膜引入质谱仪

• 批准号: 9622294
• 负责人: Jerald Schnoor
• 金额: $ 6万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9622294&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Membrane; Introduction

9622294 Schnoor The ion-trap mass spectrometer with a membrane introduction system requested in this proposal will be dedicated to support research in environmental engineering. The instrument will be used for several projects, including: 1) Uptake of BETX Compounds and Metabolites by Hybrid Poplar Trees in Hazardous Waste Prevention and Remediation; 2) Terrestrial Phytoremediation of Ammunition Wastes; 3) Reductive Dechlorination of Halogenated Methanes with Iron Metal; 4) Stimulation of BTX Bioremediation by Environmentally Acceptable Aromatic Substances; and 5) Application of Anaerobic and Multiple-Electron-Acceptor Bioremediaton of Chlorinated Subsurface Contamination. Coupled with a membrane introduction sampling system, the mass spectrometer will allow for the continuous and simultaneous monitoring of volatile components of environmental concern in a water matrix. Using syringe injections, the instrument will be used as a structure identification technique for nonvolatile compounds such ass trinitrotoluene and pesticides. The information gained from these laboratory experiments will be applied to field pollution prevention and remediation situations. If successful, the strategies developed with the help of the proposed equipment have the potential to save millions of dollars by offering more cost effective, in-situ site remediation techniques.

9622294 Schnoor 本提案中要求的带有膜引入系统的离子阱质谱仪将致力于支持环境工程研究。 该仪器将用于多个项目，包括：1）混合杨树在危险废物预防和修复中吸收BETX化合物和代谢物； 2）弹药废物的陆地植物修复； 3）卤化甲烷与铁金属的还原脱氯； 4）环境可接受的芳香物质刺激BTX生物修复； 5）厌氧和多电子受体生物修复氯化地下污染的应用。 与膜引入采样系统相结合，质谱仪将能够连续、同时监测水基质中与环境有关的挥发性成分。 该仪器采用注射器注射，将用作三硝基甲苯和农药等非挥发性化合物的结构识别技术。 从这些实验室实验中获得的信息将应用于现场污染预防和修复。 如果成功，在拟议设备的帮助下制定的策略有可能通过提供更具成本效益的原位修复技术来节省数百万美元。