Laser aerosol time-of-flight mass spectrometry analysis of individual aerosol particles from photooxidation of toluene

• Autorzy: Hao, L. Q. , Zhou, L.Z. , Gu, X. J. , Fang, L. , Zhang, W. J.
• Języki publikacji: EN

Abstrakty

EN

A laser aerosol time-of-flight mass spectrometry (ATOFMS) that can be used for real-time measurement of the size and composition of individual aerosol particles has been designed and manufactured in our laboratory. Particles are introduced into the instrument through a particle beam interface, sized by measuring the delay time between two scattering lasers, and compositionally analyzed using a laser desorption/ionization linear-time-of-flight mass spectrometry. Secondary organic aerosol particles from the photooxidation of toluene in the CH3ONO/NO/air mixture were generated in a home-made smog chamber and measured using it. Experimental results showed that the individual aerosol particles from photooxidation of toluene can be measured in real-time by this instrument. This unique capability is impossible in off-line methods such as chromatography and chemical method.

Słowa kluczowe

EN

secondary organic aerosol (SOA); laser desorption/ionization; laser aerosol time-of-flight mass spectrometer (ATOFMS)

• Czasopismo: Optica Applicata
• Rocznik: 2006
• Tom: Vol. 36, nr 1
• Strony: 5-13
• Opis fizyczny: Bibliogr. 23 poz.,

Twórcy

autor

Hao, L. Q.

autor

Zhou, L.Z.

autor

Gu, X. J.

autor

Fang, L.

autor

Zhang, W. J.

• Laboratory of Environment Spectroscopy, Anhui Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, 230031 Hefei, China

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