| 项目编号: | 1338107
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| 项目名称: | MRI: Development of the Trace Organic Gas Analyzer - Time of Flight Mass spectrometer (TOGA-TOF) |
| 作者: | Eric Apel
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| 承担单位: | University Corporation For Atmospheric Res
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| 批准年: | 2013
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| 开始日期: | 2014-07-15
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| 结束日期: | 2017-06-30
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| 资助金额: | USD546767
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | toga-tof
; development
; time-of-flight
; short time period
; trace organic gas analyzer
; high resolution tof
; instrument
; volatile organic compound measurement
; trace gas
; gas phase chemistry
; mass spectrometer
|
| 英文摘要: | This project involves the development of an enhanced instrument to study the composition of trace gases in the atmosphere. The new instrument will be able to detect a large suite of atmospheric constituents (>100 compounds) at very low concentrations over short time periods (samples are collected over 25-seconds). The instrument can be used at the surface and all the way to the lower stratosphere, as well as in both polluted and clean environments. This new instrument will enhance our understanding of gas phase chemistry and is likely to lead to new insights on related air quality and climate issues.
A trace organic gas analyzer (TOGA) will be coupled to a time-of-flight (TOF) mass spectrometer. The development of the TOGA-TOF involves the construction of a new inlet and cryogenic sample concentrator, integration of the high resolution TOF, and optimization of the integrated system to maximize its qualitative and quantitative capabilities. The TOGA-TOF will be an analytical system capable of providing comprehensive VOC measurements throughout the volatile range (C2-C12 and possibly higher) at reasonable acquisition rates (1 minute). The suite of volatile organic compound measurements quantified by the instrument will be enough to improve understanding and modeling of the photochemical state of the atmosphere. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96353
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Eric Apel. MRI: Development of the Trace Organic Gas Analyzer - Time of Flight Mass spectrometer (TOGA-TOF). 2013-01-01.
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