Laser Desorption/in Situ Chemical Ionization Aerosol Mass Spectrometry for Monitoring Tributyl Phosphate on the Surface of Environmental Particles

2000 ◽  
Vol 72 (9) ◽  
pp. 2142-2147 ◽  
Author(s):  
Alexandru C. Lazar ◽  
Peter T. A. Reilly ◽  
William B. Whitten ◽  
J. Michael Ramsey
Keyword(s):  
Mass Spectrometry ◽  
Tributyl Phosphate ◽  
Chemical Ionization ◽  
Laser Desorption ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry

scholarly journals In-situ characterization of metal nanoparticles and their organic coatings using laser-vaporization aerosol mass spectrometry

Nano Research ◽  
2015 ◽  
Vol 8 (12) ◽  
pp. 3780-3795 ◽  
Author(s):  
Patrik T. Nilsson ◽  
Axel C. Eriksson ◽  
Linus Ludvigsson ◽  
Maria E. Messing ◽  
Erik Z. Nordin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Metal Nanoparticles ◽  
Organic Coatings ◽  
Laser Vaporization ◽  
In Situ Characterization ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry

Near-Infrared Laser Desorption/Ionization Aerosol Mass Spectrometry for Investigating Primary and Secondary Organic Aerosols under Low Loading Conditions†

2010 ◽  
Vol 82 (19) ◽  
pp. 7915-7923 ◽  
Author(s):  
Scott Geddes ◽  
Brian Nichols ◽  
Stevenson Flemer ◽  
Jessica Eisenhauer ◽  
James Zahardis ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Near Infrared ◽  
Secondary Organic Aerosols ◽  
Organic Aerosols ◽  
Laser Desorption ◽  
Laser Desorption Ionization ◽  
Loading Conditions ◽  
Desorption Ionization ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry

scholarly journals Near-infrared laser desorption/ionization aerosol mass spectrometry for measuring organic aerosol at atmospherically relevant aerosol mass loadings

2010 ◽  
Vol 3 (4) ◽  
pp. 1175-1183 ◽  
Author(s):  
S. Geddes ◽  
B. Nichols ◽  
K. Todd ◽  
J. Zahardis ◽  
G. A. Petrucci
Keyword(s):  
Mass Spectrometry ◽  
Near Infrared ◽  
Laser Desorption ◽  
Organic Aerosol ◽  
Infrared Laser ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry ◽  
Atmospherically Relevant

Abstract. A new method, near-infrared laser desorption/ionization aerosol mass spectrometry (NIR-LDI-AMS), is described for the real time analysis of organic aerosols at atmospherically relevant total mass loadings. Particles are sampled with an aerodynamic lens onto an aluminum probe. A moderate energy NIR laser pulse at 1064 nm is directed onto the probe to vaporize and ionize particle components. Delayed pulse extraction is then used to sample the ions into a reflectron time of flight mass spectrometer for chemical analysis. The soft ionization afforded by the NIR photons results in minimal fragmentation (loss of a hydrogen atom) producing intact pseudo-molecular anions at [M-H]−. The limit of detection measured for pure oleic acid particles (geometric mean diameter and standard deviation of 180 nm and 1.3, respectively) was 140 fg (or 1.7 ng m−3 per minute sampling time). As an example of the utility of NIR-LDI-AMS to measurements of atmospheric importance, the method was applied to laboratory chamber measurements of the secondary organic aerosol formation from ozonolysis of α-pinene. High quality mass spectra were recorded with a 2-min time resolution for total aerosol mass loadings ranging from 1.5 to 8.7 μg m−3. These results demonstrate the potential of NIR-LDI-AMS to allow for more accurate measurements of the organic fraction of atmospheric particulate at realistic mass loadings. Measurements at ambient-levels of SOA mass loading are important to improve parameterizations of chamber-based SOA formation for modeling regional and global SOA fluxes and to aid in remediating the discrepancy between modeled and observed atmospheric total SOA production rates and concentrations.

scholarly journals Near-infrared laser desorption/ionization aerosol mass spectrometry for measuring organic aerosol at atmospherically relevant aerosol mass loadings

2010 ◽  
Vol 3 (3) ◽  
pp. 2013-2033
Author(s):  
S. Geddes ◽  
B. Nichols ◽  
K. Todd ◽  
J. Zahardis ◽  
G. A. Petrucci
Keyword(s):  
Mass Spectrometry ◽  
Near Infrared ◽  
Laser Desorption ◽  
Organic Aerosol ◽  
Infrared Laser ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry ◽  
Atmospherically Relevant

Abstract. A new method, near-infrared laser desorption/ionization aerosol mass spectrometry (NIR-LDI-AMS), is described for the real time analysis of organic aerosols at atmospherically relevant total mass loadings. Particles are sampled with an aerodynamic lens onto an aluminium probe and moderate energy NIR laser pulse at 1064 nm is directed onto the probe to vaporize and ionize particle components. Delayed pulse extraction is then used to sample the ions into a reflectron time of flight mass spectrometer for chemical analysis. The soft ionization afforded by the NIR photons results in minimal fragmentation (loss of a hydrogen atom) producing intact pseudo-molecular anions at [M-H]−. The limit of detection measured for pure oleic acid particles (geometric mean diameter and standard deviation of 180 nm and 1.3, respectively) was 140 fg (or 1.7 ng m−3 per minute sampling time). As an example of the utility of NIR-LDI-AMS to measurements of atmospheric importance, the method was applied to laboratory chamber measurements of the secondary organic aerosol formation from ozonolysis of α-pinene. High quality mass spectra were recorded with a 2-min time resolution for total aerosol mass loadings ranging from 1.5 to 8.7 μg m−3. These results demonstrate the potential of NIR-LDI-AMS to allow for more accurate measurements of the organic fraction of atmospheric particulate at realistic mass loadings. Measurements at ambient-levels of SOA mass loading are important to improve parameterizations of chamber-based SOA formation for modeling regional and SOA fluxes and to aid in remediating the discrepancy between modeled and observed atmospheric total SOA production rates and concentrations.

scholarly journals Laser Ablation-Aerosol Mass Spectrometry-Chemical Ionization Mass Spectrometry for Ambient Surface Imaging

2018 ◽  
Vol 90 (6) ◽  
pp. 4046-4053 ◽  
Author(s):  
Jennifer L. Berry ◽  
Douglas A. Day ◽  
Tim Elseberg ◽  
Brett B. Palm ◽  
Weiwei Hu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Chemical Ionization ◽  
Ionization Mass Spectrometry ◽  
Chemical Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Surface Imaging ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry ◽  
Ambient Surface

Improved Understanding of Atmospheric Organic Aerosols via Innovations in Soft Ionization Aerosol Mass Spectrometry

2011 ◽  
Vol 83 (7) ◽  
pp. 2409-2415 ◽  
Author(s):  
James Zahardis ◽  
Scott Geddes ◽  
Giuseppe A. Petrucci
Keyword(s):  
Mass Spectrometry ◽  
Organic Aerosols ◽  
Soft Ionization ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry

Identification of amines in wintertime ambient particulate material using high resolution aerosol mass spectrometry

2018 ◽  
Vol 180 ◽  
pp. 173-183 ◽  
Author(s):  
Courtney L.H. Bottenus ◽  
Paola Massoli ◽  
Donna Sueper ◽  
Manjula R. Canagaratna ◽  
Graham VanderSchelden ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Particulate Material ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry
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