搜索结果: 121-135 共查到“理学 FTIR”相关记录195条 . 查询时间(0.093 秒)
Comparisons between SCIAMACHY atmospheric CO2 retrieved using（FSI）WFM-DOAS to ground based FTIR data and the TM3 chemistry transport model
SCIAMACHY atmospheric CO2 FSI WFM-DOAS FTIR data TM3 chemistry transport model
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2009/1/15
Atmospheric CO2 concentrations, retrieved from spectral measurements made in the near infrared (NIR) by the SCIAMACHY instrument, using Full Spectral Initiation Weighting Function Modified Differentia...
Global carbon monoxide vertical distributions from spaceborne high-resolution FTIR nadir measurements
Global carbon monoxide vertical distributions spaceborne high-resolution FTIR nadir
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2009/1/14
This paper presents the first global distributions of CO vertical profiles retrieved from a thermal infrared FTS working in the nadir geometry. It is based on the exploitation of the high resolution a...
Comparisons between SCIAMACHY and ground-based FTIR data for total columns of CO, CH4, CO2 and N2O
SCIAMACHY ground-based FTIR data CO CH4 CO2 N2O
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2009/1/8
Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-tr...
Water vapour profiles by ground-based FTIR spectroscopy: study for an optimised retrieval and its validation
Water vapour profiles ground-based FTIR spectroscopy optimised retrieval
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2009/1/4
The sensitivity of ground-based instruments measuring in the infrared with respect to tropospheric water vapour content is generally limited to the lower and middle troposphere. The large vertical gra...
The Tropical Forest and Fire Emissions Experiment: method evaluation of volatile organic compound emissions measured by PTR-MS, FTIR, and GC from tropical biomass burning
Tropical Forest Fire Emissions Experiment organic compound emissions PTR-MS FTIR GC
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2008/12/25
Volatile Organic Compound (VOC) emissions from fires in tropical forest fuels were quantified using Proton-Transfer-Reaction Mass Spectrometry (PTRMS), Fourier Transform Infrared Spectroscopy (FTIR) a...
Characteristics and error estimation of stratospheric ozone and ozone-related species over Poker Flat (65° N, 147° W), Alaska observed by a ground-based FTIR spectrometer from 2001 to 2003
error estimation stratospheric ozone Alaska FTIR spectrometer
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2008/12/15
It is important to obtain the year-to-year trend of stratospheric minor species in the context of global changes. An important example is the trend in global ozone depletion. The purpose of this paper...
Modelling constraints on the emission inventory and on vertical dispersion for CO and SO2 in the Mexico City Metropolitan Area using Solar FTIR and zenith sky UV spectroscopy
CO SO2 Mexico City Metropolitan Area Solar FTIR UV spectroscopy
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2008/12/1
Emissions of air pollutants in and around urban areas lead to negative health impacts on the population. To estimate these impacts, it is important to know the sources and transport mechanisms of the ...
Comparisons between ground-based FTIR and MIPAS N2O and HNO3 profiles before and after assimilation in BASCOE
ground-based FTIR MIPAS N2O HNO3 BASCOE
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2008/11/28
Within the framework of the Network for Detection of Atmospheric Composition Change (NDACC), regular ground-based Fourier transform infrared (FTIR) measurements of many species are performed at severa...
Trend analysis of greenhouse gases over Europe measured by a network of ground-based remote FTIR instruments
greenhouse gases Europe FTIR instruments
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2008/11/26
This paper describes the statistical analysis of annual trends in long term datasets of greenhouse gas measurements taken over ten or more years. The analysis technique employs a bootstrap resampling ...
Quality assessment of O3 profiles measured by a state-of-the-art ground-based FTIR observing system
O3 FTIR
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2008/11/20
Ground-based Fourier Transform Infra-Red (FTIR) measurements are an important component of the global atmospheric monitoring system. Their essential role in validating satellite measurements requires ...
Comparison of ground-based Brewer and FTIR total column O3 monitoring techniques
ground-based Brewer FTIR O3
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2008/11/20
We compare the currently most precise, ground-based total O3 measurement techniques: Brewer and FTIR. We give an overview of the similarities and the differences between the measurements and the retri...
FTIR监测7-氟-2H-1,4-苯并噁嗪-3(4H)-酮的固相合成
组合化学 固相有机合成 红外光谱
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2008/11/6
我们已经合成了一系列具有生物活性的杂环取代苯并噁嗪酮类化合物, 为了构建一个苯并噁嗪酮类化合物的组合物库, 我们又探索出了一种固相合成7-氟-2H-1,4-苯并噁嗪-3(4H)-酮的方法, 并用FTIR技术成功地监测、优化了整个反应过程, 并根据得到的红外光谱图对反应动力学进行了探讨.
二甲醚在Pt电极上吸附和氧化的循环伏安和原位FTIR光谱研究
二甲醚 电氧化 pH效应 原位FTIR反射光谱 铂电极
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2010/1/14
运用电化学循环伏安法(CV)和原位傅立叶变换红外(FTIR)反射光谱, 研究了不同pH值溶液中二甲醚(DME)在Pt电极上的解离吸附和氧化过程. 稳态CV结果给出, 在0.1 mol·L-1 H2SO4溶液中, 当电位处于0.05-0.35 V (vs RHE)区间, 约70%的Pt表面位被DME的解离吸附产物占据. DME电氧化反应的活性随pH值增加而下降, 在0.1 mol·L-1 NaOH溶...
DAC/FTIR和GC/FTIR联用技术鉴定爆炸残留物
GC/FTIR DAC/FTIR
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2008/5/12
来自爆炸现场的爆炸残留物样品一般呈微粒状。利用配置高压金刚石池(AC)的傅里叶变换红外光谱仪(DAC/FTIR)可以检验小至1微克重的炸药微粒,测试样品在高压条件下,其红外吸收频率会向高波数位移。利用大口径熔融石英毛细管柱气相色谱与傅里叶变换红外光谱联用技术(GC/FTIR)可以分离、鉴定炸药混合物和现场提取的爆炸残留物。
GC/FTIR联用技术及其在化学反应研究中的应用进展
化学反应 GC/FTIR联用技术
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2008/5/12
介绍气相色谱和傅立叶变换红外光谱 (GC FTIR)联用分析技术 ,讨论近年来该联用技术分别在联用系统的 4个主要组成部分———气相色谱、傅立叶变换红外光谱仪、接口系统和计算机控制及数据处理中的作用。叙述该联用技术在联用色谱系统、联用接口技术以及数据处理技术等方面的进展和成就。证明气相色谱法独特的分离能力能够与红外光谱的分子结构鉴别能力完美的结合 ,用于分离鉴定各类复杂混合物 ,其检测灵敏度相当高...