搜索结果: 1-6 共查到“理学 HCHO”相关记录6条 . 查询时间(0.063 秒)
中国科学院合肥物质科学研究院安光所在MAX-DOAS观测HCHO研究方面取得新进展(图)
观测对流层;大气光氧化反应;
font style='font-size:12px;'>
2021/11/30
近期,安光所谢品华研究员课题组在MAX-DOAS观测HCHO研究方面取得新进展,相关研究工作以《2014年APEC期间基于北京郊区地基MAX-DOAS观测对流层HCHO VCD以及与CAMS模型对比》(Ground-based MAX-DOAS observations of tropospheric formaldehyde VCDs and comparisons with the CAMS ...
Sample drying to improve HCHO measurements by PTR-MS instruments: laboratory and field measurements
HCHO PTR-MS laboratory and field measurements
font style='font-size:12px;'>
2010/2/21
A significant improvement in the PTR-MS instrument sensitivity to formaldehyde was obtained by drying the air sample to a dew point of −30 °C using a cold trap to condense and freeze water vapou...
Mobile mini-DOAS measurement of the outflow of NO2 and HCHO from Mexico City
Mobile mini-DOAS measurement NO2 HCHO Mexico City
font style='font-size:12px;'>
2009/8/18
We here present the results from mobile measurements using two ground-based zenith viewing Differential Optical Absorption Spectroscopy (DOAS) instruments. The measurement was performed in a cross-sec...
NO2 and HCHO photolysis frequencies from irradiance measurements in Thessaloniki, Greece
NO2 HCHO photolysis frequencies Thessaloniki
font style='font-size:12px;'>
2009/2/11
An empirical approach for the retrieval of nitrogen dioxide (NO2) and formaldehyde (HCHO) photolysis frequencies from measurements of global irradiance is presented in this work. Four months of synchr...
Atmospheric deuterium fractionation:HCHO and HCDO yields in the CH2DO + O2 reaction
Atmospheric deuterium fractionation HCHO HCDO yields CH2DO + O2 reaction
font style='font-size:12px;'>
2008/12/25
The formation of formaldehyde via hydrogen atom transfer from the methoxy radical to molecular oxygen is a key step in the atmospheric photochemical oxidation of methane, and in the propagation of deu...
HCHO+X(X=F、Cl、Br)的反应机理
大气污染 HCHO 电子密度拓扑分析 T-型结构过渡态
font style='font-size:12px;'>
2010/1/14
采用CCSD/6-311++G(d,p)//B3LYP/6-311++G(d,p)方法研究了HCHO与卤素原子X(X=F、Cl、Br)的反应机理. 计算结果表明, 卤素原子X(X=F、Cl、Br)主要通过直接提取HCHO中的H原子生成HCO+HX(X=F、Cl、Br). 另外还可以生成稳定的中间体, 中间体再通过卤原子夺氢和氢原子直接解离两个反应通道分别生成HCO+HX(X=F、Cl、Br)和H+...