49 research outputs found
Time-resolved monitoring of polycyclic aromatic hydrocarbons adsorbed on atmospheric particles
Real-time monitoring of individual particles from atmospheric aerosols was
performed by means of a specifically developed single-particle fluorescence
spectrometer (SPFS). The observed fluorescence was assigned to particles
bearing polycyclic aromatic hydrocarbons (PAH). This assignment was supported
by an intercomparison with classical speciation on filters followed by gas
chromatography-mass spectrometry (GC-MS) analysis. As compared with
daily-averaged data, our time resolved approach provided information about the
physicochemical dynamics of the particles. In particular, distinctions were
made between background emissions related to heating, and traffic peaks during
rush hours. Also, the evolution of the peak fluorescence wavelength provided an
indication of the aging of the particles during the day.Comment: 8 pages, 6 figure
Validation d'une méthode automatisée de titration de l'alcalimétrie complète dans l'eau douce
National audienc
Mise au point d'une méthode de reconcentration et de dosage des orthophosphates à l'état de traces dans une matrice aqueuse
DiplĂ´me : DE
Testing of conductivity/calcium and rubidium/strontium ratios as indicators of the chemical stability of a river: comparison with a biological indicator
International audienc
Validation de la méthode de dosage du pigment chlorophylle a dans l’eau douce par extraction et par HPLC-DAD
National audienc
Evolution physico-chimique des eaux du Léman Elément majeur : campagne 2011
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