“Depth-Profiling” and Quantitative Characterization of the Size, Composition, Shape, Density, and Morphology of Fine Particles with SPLAT, a Single-Particle Mass Spectrometer

2008 ◽  
Vol 112 (4) ◽  
pp. 669-677 ◽  
Author(s):  
Alla Zelenyuk ◽  
Juan Yang ◽  
Chen Song ◽  
Rahul A. Zaveri ◽  
Dan Imre
Keyword(s):  
Mass Spectrometer ◽  
Single Particle ◽  
Fine Particles ◽  
Depth Profiling ◽  
Size Composition ◽  
Particle Mass ◽  
Quantitative Characterization

Characterization of surgical aerosols by the compact single-particle mass spectrometer LAMPAS 3

2011 ◽  
Vol 401 (10) ◽  
pp. 3165-3172 ◽  
Author(s):  
K.-P. Hinz ◽  
E. Gelhausen ◽  
K.-C. Schäfer ◽  
Z. Takats ◽  
B. Spengler
Keyword(s):  
Mass Spectrometer ◽  
Single Particle ◽  
Particle Mass

In Situ Characterization of Cloud Condensation Nuclei, Interstitial, and Background Particles Using the Single Particle Mass Spectrometer, SPLAT II†

2010 ◽  
Vol 82 (19) ◽  
pp. 7943-7951 ◽  
Author(s):  
Alla Zelenyuk ◽  
Dan Imre ◽  
Michael Earle ◽  
Richard Easter ◽  
Alexei Korolev ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Single Particle ◽  
Cloud Condensation Nuclei ◽  
Particle Mass ◽  
Condensation Nuclei ◽  
In Situ Characterization

scholarly journals Characterization of core–shell MOF particles by depth profiling experiments using on-line single particle mass spectrometry

The Analyst ◽  
2015 ◽  
Vol 140 (5) ◽  
pp. 1510-1515 ◽  
Author(s):  
J. F. Cahill ◽  
H. Fei ◽  
S. M. Cohen ◽  
K. A. Prather
Keyword(s):  
Mass Spectrometry ◽  
Single Particle ◽  
Depth Profiling ◽  
Particle Mass ◽  
Shell Structures ◽  
Core Shell ◽  
Single Particle Mass Spectrometry ◽  
Potential Applications ◽  
On Line

Materials with core–shell structures have distinct properties that lend themselves to a variety of potential applications.

Characterization of vertical aerosol flows by single particle mass spectrometry for micrometeorological analysis

2011 ◽  
Vol 102 (1-2) ◽  
pp. 49-56 ◽  
Author(s):  
Elmar Gelhausen ◽  
Klaus-Peter Hinz ◽  
Andres Schmidt ◽  
Bernhard Spengler
Keyword(s):  
Mass Spectrometry ◽  
Single Particle ◽  
Particle Mass ◽  
Single Particle Mass Spectrometry

scholarly journals Sources and mixing state of size-resolved elemental carbon particles in a European megacity: Paris

2012 ◽  
Vol 12 (4) ◽  
pp. 1681-1700 ◽  
Author(s):  
R. M. Healy ◽  
J. Sciare ◽  
L. Poulain ◽  
K. Kamili ◽  
M. Merkel ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Biomass Burning ◽  
Single Particle ◽  
Mass Concentration ◽  
Elemental Carbon ◽  
Fossil Fuel ◽  
Time Of Flight ◽  
Particle Mass ◽  
Mass Size ◽  
Mass Concentrations

Abstract. An Aerosol Time-Of-Flight Mass Spectrometer (ATOFMS) was deployed to investigate the size-resolved chemical composition of single particles at an urban background site in Paris, France, as part of the MEGAPOLI winter campaign in January/February 2010. ATOFMS particle counts were scaled to match coincident Twin Differential Mobility Particle Sizer (TDMPS) data in order to generate hourly size-resolved mass concentrations for the single particle classes observed. The total scaled ATOFMS particle mass concentration in the size range 150–1067 nm was found to agree very well with the sum of concurrent High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) and Multi-Angle Absorption Photometer (MAAP) mass concentration measurements of organic carbon (OC), inorganic ions and black carbon (BC) (R2 = 0.91). Clustering analysis of the ATOFMS single particle mass spectra allowed the separation of elemental carbon (EC) particles into four classes: (i) EC attributed to biomass burning (ECbiomass), (ii) EC attributed to traffic (ECtraffic), (iii) EC internally mixed with OC and ammonium sulfate (ECOCSOx), and (iv) EC internally mixed with OC and ammonium nitrate (ECOCNOx). Average hourly mass concentrations for EC-containing particles detected by the ATOFMS were found to agree reasonably well with semi-continuous quantitative thermal/optical EC and optical BC measurements (r2 = 0.61 and 0.65–0.68 respectively, n = 552). The EC particle mass assigned to fossil fuel and biomass burning sources also agreed reasonably well with BC mass fractions assigned to the same sources using seven-wavelength aethalometer data (r2 = 0.60 and 0.48, respectively, n = 568). Agreement between the ATOFMS and other instrumentation improved noticeably when a period influenced by significantly aged, internally mixed EC particles was removed from the intercomparison. 88% and 12% of EC particle mass was apportioned to fossil fuel and biomass burning respectively using the ATOFMS data compared with 85% and 15% respectively for BC estimated from the aethalometer model. On average, the mass size distribution for EC particles is bimodal; the smaller mode is attributed to locally emitted, mostly externally mixed EC particles, while the larger mode is dominated by aged, internally mixed ECOCNOx particles associated with continental transport events. Periods of continental influence were identified using the Lagrangian Particle Dispersion Model (LPDM) "FLEXPART". A consistent minimum between the two EC mass size modes was observed at approximately 400 nm for the measurement period. EC particles below this size are attributed to local emissions using chemical mixing state information and contribute 79% of the scaled ATOFMS EC particle mass, while particles above this size are attributed to continental transport events and contribute 21% of the EC particle mass. These results clearly demonstrate the potential benefit of monitoring size-resolved mass concentrations for the separation of local and continental EC emissions. Knowledge of the relative input of these emissions is essential for assessing the effectiveness of local abatement strategies.

scholarly journals Real-time analysis of insoluble particles in glacial ice using single-particle mass spectrometry

2017 ◽  
Vol 10 (11) ◽  
pp. 4459-4477
Author(s):  
Matthew Osman ◽  
Maria A. Zawadowicz ◽  
Sarah B. Das ◽  
Daniel J. Cziczo
Keyword(s):  
Single Particle ◽  
Aqueous Suspension ◽  
Ice Core ◽  
Ice Cores ◽  
Size Composition ◽  
Particle Mass ◽  
Initial Attempt ◽  
Glacial Ice ◽  
Real Time Analysis ◽  
Insoluble Particles

Abstract. Insoluble aerosol particles trapped in glacial ice provide insight into past climates, but analysis requires information on climatically relevant particle properties, such as size, abundance, and internal mixing. We present a new analytical method using a time-of-flight single-particle mass spectrometer (SPMS) to determine the composition and size of insoluble particles in glacial ice over an aerodynamic size range of  ∼  0.2–3.0 µm diameter. Using samples from two Greenland ice cores, we developed a procedure to nebulize insoluble particles suspended in melted ice, evaporate condensed liquid from those particles, and transport them to the SPMS for analysis. We further determined size-dependent extraction and instrument transmission efficiencies to investigate the feasibility of determining particle-class-specific mass concentrations. We find SPMS can be used to provide constraints on the aerodynamic size, composition, and relative abundance of most insoluble particulate classes in ice core samples. We describe the importance of post-aqueous processing to particles, a process which occurs due to nebulization of aerosols from an aqueous suspension of originally soluble and insoluble aerosol components. This study represents an initial attempt to use SPMS as an emerging technique for the study of insoluble particulates in ice cores.

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