Effect of Structural Heterogeneity in Chemical Composition on Online Single-Particle Mass Spectrometry Analysis of Sea Spray Aerosol Particles

2017 ◽  
Vol 51 (7) ◽  
pp. 3660-3668 ◽  
Author(s):  
Camille M. Sultana ◽  
Douglas B. Collins ◽  
Kimberly A. Prather
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Single Particle ◽  
Aerosol Particles ◽  
Structural Heterogeneity ◽  
Mass Spectrometry Analysis ◽  
Sea Spray ◽  
Spectrometry Analysis ◽  
Single Particle Mass Spectrometry ◽  
Sea Spray Aerosol

Inside versus Outside: Ion Redistribution in Nitric Acid Reacted Sea Spray Aerosol Particles as Determined by Single Particle Analysis

2013 ◽  
Vol 135 (39) ◽  
pp. 14528-14531 ◽  
Author(s):  
Andrew P. Ault ◽  
Timothy L. Guasco ◽  
Olivia S. Ryder ◽  
Jonas Baltrusaitis ◽  
Luis A. Cuadra-Rodriguez ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Single Particle ◽  
Aerosol Particles ◽  
Particle Analysis ◽  
Sea Spray ◽  
Single Particle Analysis ◽  
Sea Spray Aerosol

scholarly journals Resonance-Enhanced Detection of Metals in Aerosols using Single Particle Mass Spectrometry

2020 ◽  
Author(s):  
Johannes Passig ◽  
Julian Schade ◽  
Ellen Iva Rosewig ◽  
Robert Irsig ◽  
Thomas Kröger-Badge ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Excimer Laser ◽  
Single Particle ◽  
Aerosol Particles ◽  
Ambient Air ◽  
Particle Mass ◽  
Anthropogenic Aerosols ◽  
Single Particle Mass Spectrometry ◽  
Krf Excimer Laser ◽  
The Impact

Abstract. We describe resonance effects in laser desorption/ionization (LDI) of particles that substantially increase the sensitivity and selectivity to metals in single particle mass spectrometry (SPMS). Within the proposed scenario, resonant light absorption by ablated metal atoms increases their ionization rate within a single laser pulse. By choosing the appropriate laser wavelength, the key micronutrients Fe, Zn and Mn can be detected on individual aerosol particles with considerably improved efficiency. These ionization enhancements for metals apply to natural dust and anthropogenic aerosols, both important sources of bioavailable metals to marine environments. Transferring the results into applications, we show that the spectrum of our KrF-excimer laser is in resonance with a major absorption line of iron atoms. To estimate the impact of resonant LDI on the metal detection efficiency in SPMS applications, we performed a field experiment on ambient air with two alternately firing excimer lasers of different wavelengths. Herein, resonant LDI with the KrF-excimer laser (248.3 nm) revealed Fe signatures for many more aerosol particles compared to the more common ArF-excimer laser line of 193.3 nm. Moreover, resonant ionization of iron appeared to be less dependent on the particle matrix than conventional non-resonant LDI, allowing a more universal and secure detection of Fe. Our findings show a way to improve the detection and source attribution capabilities of SPMS for particle-bound metals, a health-relevant aerosol component and an important source of micronutrients to the surface oceans affecting marine primary productivity.

scholarly journals Chemical composition and microbiological evaluation of essential oil from Hyssopus officinalis L. with white and pink flowers

2018 ◽  
Vol 16 (1) ◽  
pp. 317-323 ◽  
Author(s):  
Tomasz Baj ◽  
Izabela Korona-Głowniak ◽  
Radosław Kowalski ◽  
Anna Malm
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Essential Oil ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Main Components ◽  
Different Content ◽  
Common Plant ◽  
Hyssopus Officinalis

AbstractHyssopus officinalis L. is a common plant that is most usually found in three color forms - f. cyaneus (blue), f. ruber Mill. (purple/pink) and f. albus Alef (white). In the present work, we evaluated the chemical composition and antimicrobial activity of essential oils obtained from Polish-sourced white- and pink-flowered H. officinalis. Gas chromatography-mass spectrometry analysis of the essential oil has shown that both forms of color have a different content of main components. The principle essential oil component of white-flowered H. officinalis L. was pinocamphone (51%), while pink-flowered H. officinalis L. contained almost equal amounts of pinocamphone (28.8%) and isopinocamphone (21.9%). Of note, the essential oil of the pink form was more active against Grampositive bacteria, especially against Bacillus subtilis.

Depth Profiling of Heterogeneously Mixed Aerosol Particles Using Single-Particle Mass Spectrometry

2002 ◽  
Vol 74 (7) ◽  
pp. 1642-1649 ◽  
Author(s):  
Ephraim Woods ◽  
Geoffrey D. Smith ◽  
Roger E. Miller ◽  
Tomas Baer
Keyword(s):  
Mass Spectrometry ◽  
Single Particle ◽  
Aerosol Particles ◽  
Depth Profiling ◽  
Particle Mass ◽  
Single Particle Mass Spectrometry

Source apportionment of lead-containing aerosol particles in Shanghai using single particle mass spectrometry

Chemosphere ◽  
2009 ◽  
Vol 74 (4) ◽  
pp. 501-507 ◽  
Author(s):  
Yaping Zhang ◽  
Xiaofei Wang ◽  
Hong Chen ◽  
Xin Yang ◽  
Jianmin Chen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Source Apportionment ◽  
Single Particle ◽  
Aerosol Particles ◽  
Particle Mass ◽  
Single Particle Mass Spectrometry
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