A Chemical Ionization High-Resolution Time-of-Flight Mass Spectrometer Coupled to a Micro Orifice Volatilization Impactor (MOVI-HRToF-CIMS) for Analysis of Gas and Particle-Phase Organic Species

نویسندگان

  • Reddy L. N. Yatavelli
  • Felipe Lopez-Hilfiker
  • Julia D. Wargo
  • Joel R. Kimmel
  • Michael J. Cubison
  • Timothy H. Bertram
  • Jose L. Jimenez
  • Marc Gonin
  • Douglas R. Worsnop
  • Joel A. Thornton
  • Christine Loza
چکیده

Reddy L. N. Yatavelli,1,5 Felipe Lopez-Hilfiker,1 Julia D. Wargo,1 Joel R. Kimmel,2,3,5 Michael J. Cubison,3 Timothy H. Bertram,4 Jose L. Jimenez,5 Marc Gonin,3 Douglas R. Worsnop,2,6 and Joel A. Thornton1 1Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA 2Aerodyne Research Inc., Billerica, Massachusetts, USA 3TOFWERK AG, Thun, Switzerland 4Department of Chemistry and Biochemistry, University of California, San Diego, California, USA 5Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, USA 6Department of Physics, University of Helsinki, Helsinki, Finland

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Analysis of organic aerosols using a micro-orifice volatilization impactor coupled to an atmospheric-pressure chemical ionization mass spectrometer.

We present the development and characterization of a combination of a micro-orifice volatilization impactor (MOVI) and an ion trap mass spectrometer (IT/MS) with an atmospheric-pressure chemical ionization (APCI) source. The MOVI is a multi-jet impactor with 100 nozzles, allowing the collection of aerosol particles by inertial impaction on a deposition plate. The pressure drop behind the nozzle...

متن کامل

Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NOx system

Positive matrix factorization (PMF) of highresolution laboratory chamber aerosol mass spectra is applied for the first time, the results of which are consistent with molecular level MOVI-HRToF-CIMS aerosolphase and CIMS gas-phase measurements. Secondary organic aerosol was generated by photooxidation of dodecane under low-NOx conditions in the Caltech environmental chamber. The PMF results exhi...

متن کامل

A novel method for online analysis of gas and particle composition: description and evaluation of a Filter Inlet for Gases and AEROsols (FIGAERO)

We describe a novel inlet that allows measurement of both gas and particle molecular composition when coupled to mass spectrometric, chromatographic, or optical sensors: the Filter Inlet for Gases and AEROsols (FIGAERO). The design goals for the FIGAERO are to allow unperturbed observation of ambient air while simultaneously analyzing gases and collecting particulate matter on a Teflon® (hereaf...

متن کامل

Design, Construction and Calibration of a Laser Ionization Time-of-Flight Mass Spectrometer

A time-of-flight mass spectrometer (TOF-MS) developed in our laboratory at Isfahan University of Technology is described here. The TOF-MS instrument uses laser as the ionization source which provides an opportunity to investigate the ions formed in laser ablation or desorption. The TOF-MS has an ionization chamber containing an accelerator and an ion lens to focus the ions into a one meter line...

متن کامل

Bubble formation on a single orifice in a gas solid fluidized bed using digital image analysis

Digital Image Analysis (DIA) has been employed to characterize the time evolution of a bubble injected from a single orifice into a pseudo 2-dimansional gas-solid fluidized bed. The injected bubble diameter increased with the square root of time before detachment. During bubble free flight in the bed, its diameter remains approximately constant. The center of mass of the bubble increases with t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012