Mass Spectrometric Analysis of PM2.5 Aerosol Samples

Uspenski, A.A.; Stepakov, A.V.

doi:10.14233/ajchem.2018.21341

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2019

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“…For carbonyls there is a similar process, when the samples were derivatized in methyl oxime through reaction with O-methylhydroxylamine [22]. In our previous work, mass spectrometric methods were used to carry out a qualitative analysis of atmospheric aerosol samples, which made it possible to identify many polyaromatic components [23]. This work is a logical continuation previous research.…”

Section: Introductionmentioning

confidence: 81%

Spectroscopic Analysis of Organic Matters Derived from Urban Atmospheric Aerosols

Uspenski¹,

Stepakov²

2019

Asian J. Chem.

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The composition of organic matter derived from PM2.5 fraction of urban aerosols collected in Saint-Petersburg during the annual cycle was investigated by 1 H NMR, 13 C NMR and IR spectroscopies. It was found that the composition of organic fraction varies slightly with the seasons. The main organic components of aerosol extracts are aliphatic oxygen-containing compounds (such as derivatives of carboxylic acids and esters), whose content is maximum in winter samples. Aromatic compounds are present in aerosol extracts in negligible quantities. The results showed a significant contribution of the process of combustion of automotive fuel in the formation of low molecular weight organic compounds that are present in the composition of urban aerosol.

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Section: Introductionmentioning

confidence: 81%