[PDF] Top 20 Analysis of the chemical composition of atmospheric organic aerosols by mass spectrometry
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Analysis of the chemical composition of atmospheric organic aerosols by mass spectrometry
... Our strong and friendly collaboration resulted in many ways by “chance” or “luck-of-the- draw,” which to this day is incredibly humbling to me. Magda met Shane Murphy from my research group during an international ... See full document
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Understanding atmospheric organic aerosols via factor analysis of aerosol mass spectrometry: a review.
... bulk composition and temporal variations of OA in the form of ensemble mass spectra (MS) acquired over short time ...factor analysis of the MS matrix has proved effective at retrieving OA factors ... See full document
24
Analysis of the Chemical Composition of Atmospheric and Chamber Generated Aerosol Using Mass Spectrometry
... from the LC/MS technique underestimating the amount of polyesters, possibly related to the use of a C 18 reverse phase column and the unavailability of authentic standards. The C 18 reverse phase column could have ... See full document
378
Secondary Organic Aerosol Composition Studies Using Mass Spectrometry
... DART-ToF-MS analysis, H:C and O:C ratios were calculated and plotted on a van Krevelen diagram 56 to depict the trends in functionalization and fragmentation for each chamber SOA ...aerosol mass ... See full document
402
In Vitro antifungal potential of Acinetobacter baumannii and determination of its chemical composition by gas chromatography-mass spectrometry
... were analysis of the bioactive chemical products and evaluation of antibacterial and antifungal ...GC-MS analysis of Acinetobacter baumannii revealed the existence of the Malonic acid ,mononitrile , ... See full document
9
Online molecular characterisation of organic aerosols in an atmospheric chamber using extractive electrospray ionisation mass spectrometry
... volatile organic com- pounds (VOCs) represents a substantial source of secondary organic aerosol (SOA) in the ...Cambridge Atmospheric Simulation Cham- ber ...(EESI) mass spectrometry ... See full document
16
Online molecular characterisation of organic aerosols in an atmospheric chamber using extractive electrospray ionisation mass spectrometry
... volatile organic com- pounds (VOCs) represents a substantial source of secondary organic aerosol (SOA) in the ...Cambridge Atmospheric Simulation Cham- ber ...(EESI) mass spectrometry ... See full document
16
Molecular characterization of alkyl nitrates in atmospheric aerosols by ion mobility mass spectrometry
... other chemical classes commonly detected in negative ESI, such as organic sulfates and carboxylic ...dissociation analysis, upon which the resulting product ions share the identical drift time as the ... See full document
11
Urban organic aerosols measured by single particle mass spectrometry in the megacity of London
... aerosol mass loading of generic organic ...oxygenated organic aerosol (HOA and OOA, respectively) (Canagaratna et ...ambient organic aerosol data matrix from the ...semi-volatile ... See full document
16
Molecular composition of biogenic secondary organic aerosols using ultrahigh-resolution mass spectrometry: comparing laboratory and field studies
... molecular composition of laboratory-generated SOA was substantially different from that of the anthro- pogenically affected TIED ...of organic compounds in these ... See full document
13
Chemical mass closure and source-specific composition of atmospheric particles
... trap mass spectrometer (HPLC-MS, Agilent Series 1100 LC/MSD Trap SL; Agilent Technologies, Waldbronn, ...the chemical coating of the particles (stationary phase) and the solvent eluting through the column ... See full document
82
Iodometry-Assisted Liquid Chromatography Electrospray Ionization Mass Spectrometry for Analysis of Organic Peroxides - an Application to Atmospheric Secondary Organic Aerosol
... 2 organic peroxides reacted with iodide slowly at room temperature, but the reaction was completed rapidly at 60 ◦ ...of organic peroxide is not attributable to a kinetic limitation of ... See full document
19
An ion-neutral model to investigate chemical ionization mass spectrometry analysis of atmospheric molecules – application to a mixed reagent ion system for hydroperoxides and organic acids
... established atmospheric ion chemistry mechanisms, thermodynamic data and reaction rate ...The chemical mechanism was augmented with additional reactions and their reaction rate coefficients specific to the ... See full document
31
Characterization of aerosol chemical composition by aerosol mass spectrometry in Central Europe: an overview
... Wexler, A. S. and Seinfeld, J. H.: The distribution of ammonium salts among a size and com- positional dispersed aerosol, Atmos. Environ., 24A, 1231–1246, 1990. Zdr ´ahal, Z., Oliveira, J., Vermeylen, R., Claeys, M., and ... See full document
37
Identification of organic hydroperoxides and peroxy acids using atmospheric pressure chemical ionization–tandem mass spectrometry (APCI-MS/MS): application to secondary organic aerosol
... Conclusions Organic hydroperoxides are molecules of crucial impor- tance to atmospheric chemistry, arising under VOC oxidation schemes that proceed under low-NO x ...secondary organic aerosol ... See full document
9
Coupling Filter-Based Thermal Desorption Chemical Ionization Mass Spectrometry with Liquid Chromatography/Electrospray Ionization Mass Spectrometry for Molecular Analysis of Secondary Organic Aerosol
... American Chemical Society. 1155 Sixteenth Street N.W., Spectrometry with Liquid Chromatography/Electrospray Ionization Mass Spectrometry for Molecular Analysis of Secondary ... See full document
39
Measurements of hydroperoxy radicals (HO2) at atmospheric concentrations using bromide chemical ionisation mass spectrometry
... For the future application of the instrument in field and chamber experiments, various modifications of the instru- ment will be tested to improve the sensitivity and minimise the background signal: a sheath flow of pure ... See full document
12
Ion mobility spectrometry–mass spectrometry (IMS–MS) for on- and offline analysis of atmospheric gas and aerosol species
... the mass spectral peak at m/z 220 observed dur- ing SOAS (see ...high-resolution mass spectral peak was completely fit ...in composition and ... See full document
18
Mass Spectrometric Analysis of Organic Aerosol Composition: Laboratory and Ambient
... filled with glass beads, is used to remove water vapor from the sample and removes bulk atmospheric gases (e.g., O 2 and N 2 ). The initial concentration step is then followed by trapping of VOCs with a Tenax ... See full document
203
Methods to detect volatile organic compounds using selected-ion chemical ionization mass spectrometry
... Data Analysis The ITMS TM software used to acquire mass spectra had two different modes of operation: profile mode and centroid ...the mass spectrum is simply the linear connection of the individual ... See full document
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