scholarly journals Vertical Characterization of Aerosol Particle Composition in Beijing, China: Insights From 3‐Month Measurements With Two Aerosol Mass Spectrometers

2018 ◽  
Vol 123 (22) ◽  
Author(s):  
Wei Zhou ◽  
Yele Sun ◽  
Weiqi Xu ◽  
Xiujuan Zhao ◽  
Qingqing Wang ◽  
...  
Keyword(s):  
Aerosol Particle ◽  
Mass Spectrometers ◽  
Particle Composition ◽  
Aerosol Mass ◽  
Beijing China

scholarly journals Evaluation of the new capture vaporizer for aerosol mass spectrometers: Characterization of organic aerosol mass spectra

2018 ◽  
Vol 52 (7) ◽  
pp. 725-739 ◽  
Author(s):  
Weiwei Hu ◽  
Douglas A. Day ◽  
Pedro Campuzano-Jost ◽  
Benjamin A. Nault ◽  
Taehyun Park ◽  
...  
Keyword(s):  
Mass Spectra ◽  
Organic Aerosol ◽  
Mass Spectrometers ◽  
Aerosol Mass

scholarly journals Characterization of urban and rural organic particulate in the Lower Fraser Valley using two Aerodyne Aerosol Mass Spectrometers

2004 ◽  
Vol 38 (34) ◽  
pp. 5745-5758 ◽  
Author(s):  
M. Rami Alfarra ◽  
Hugh Coe ◽  
James D. Allan ◽  
Keith N. Bower ◽  
Hacene Boudries ◽  
...  
Keyword(s):  
Mass Spectrometers ◽  
Aerosol Mass ◽  
Lower Fraser Valley ◽  
Fraser Valley

Real‐time characterization of aerosol particle composition, sources and influences of increased ventilation and humidity in an office

Indoor Air ◽  
2021 ◽  
Author(s):  
Junyao Li ◽  
Weiqi Xu ◽  
Zhijie Li ◽  
Minzheng Duan ◽  
Bin Ouyang ◽  
...  
Keyword(s):  
Real Time ◽  
Aerosol Particle ◽  
Particle Composition

scholarly journals Mass Spectrometric Calibration Procedure for Real-Time Detection of Lighter Hydrocarbons

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2123
Author(s):  
Makuachukwu F. Mbaegbu ◽  
Puspa L. Adhikari ◽  
Ipsita Gupta ◽  
Mathew Rowe
Keyword(s):  
Real Time ◽  
Mass Spectrometer ◽  
Calibration Procedure ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Mass Selection ◽  
Mass Spectrometric Method ◽  
Mass Spectrometers ◽  
Drilling Rig

Determining gas compositions from live well fluids on a drilling rig is critical for real time formation evaluation. Development and utilization of a reliable mass spectrometric method to accurately characterize these live well fluids are always challenging due to lack of a robust and effectively selective instrument and procedure. The methods currently utilized need better calibration for the characterization of light hydrocarbons (C1–C6) at lower concentrations. The primary goal of this research is to develop and optimize a powerful and reliable analytical method to characterize live well fluid using a quadruple mass spectrometer (MS). The mass spectrometers currently being used in the field have issues with detection, spectra deconvolution, and quantification of analytes at lower concentrations (10–500 ppm), particularly for the lighter (<30 m/z) hydrocarbons. The objectives of the present study are thus to identify the detection issues, develop and optimize a better method, calibrate and QA/QC the MS, and validate the MS method in lab settings. In this study, we used two mass spectrometers to develop a selective and precise method to quantitatively analyze low level lighter analytes (C1–C6 hydrocarbons) with masses <75 m/z at concentrations 10–500 ppm. Our results suggest that proper mass selection like using base peaks with m/z 15, 26, 41, 43, 73, and 87, respectively, for methane, ethane, propane, butane, pentane, and hexane can help detect and accurately quantify hydrocarbons from gas streams. This optimized method in quadrupole mass spectrometer (QMS) will be invaluable for early characterization of the fluid components from a live hydrocarbon well in the field in real time.

Characterization of particle composition, organic vapor constituents, and mutagenicity of indoor air pollutant emissions

1986 ◽  
Vol 12 (1-4) ◽  
pp. 351-362 ◽  
Author(s):  
Ken Sexton ◽  
Lurance M. Webber ◽  
Steven B. Hayward ◽  
Richard G. Sextro
Keyword(s):  
Indoor Air ◽  
Air Pollutant ◽  
Pollutant Emissions ◽  
Particle Composition ◽  
Organic Vapor
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