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Sample drying to improve HCHO measurements by PTR-MS instruments: laboratory and field measurements
HCHO PTR-MS laboratory and field measurements
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
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
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
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...
