Electrospray ionization mass spectrometric detection of low polar compounds by adding NaAuCl4

Electrospray ionization mass spectrometric detection of low polar compounds by adding NaAuCl4

Liquid chromatography electrospray ionization mass spectrometry (LC/ESI/MS) has been widely used for various analyses. However, it is difficult to use LC/ESI/MS for the analysis of low polar compounds, such as polycyclic aromatic hydrocarbons. It is well known that AuCl4− ion decomposes to AuCl3 by...

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Veröffentlicht in:Journal of mass spectrometry. 2016-11, Vol.51 (11), p.1096-1102
1. Verfasser: Moriwaki, Hiroshi
Format: Artikel
Sprache:eng
Schlagworte:
electrospray ionization
Ions
low polar compounds
Mass spectrometry
Polycyclic aromatic hydrocarbons
post-column addition
Scientific imaging
sodium chloroaurate
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description Liquid chromatography electrospray ionization mass spectrometry (LC/ESI/MS) has been widely used for various analyses. However, it is difficult to use LC/ESI/MS for the analysis of low polar compounds, such as polycyclic aromatic hydrocarbons. It is well known that AuCl4− ion decomposes to AuCl3 by heating, and AuCl3 is a strong π‐electrophilic Lewis acid. Low polar compounds (pyrene, benzo[a]pyrene, perylene, benzo[ghi]perylene, dibenzothiophene and p‐dimethoxybenzene) were detected by ESI/MS in the positive ion mode by adding NaAuCl4. The low polar compound interacts with AuCl3 formed at the ESI interface, and undergoes electron transfer to AuCl3. The radical cation of the low polar compound was then detected by MS. In addition, the LC/ESI/MS determination of polycyclic aromatic hydrocarbons by the post‐column addition of NaAuCl4 was studied. © 2016 The Authors Journal of Mass Spectrometry Published by John Wiley & Sons Ltd
doi_str_mv 10.1002/jms.3822
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subjects electrospray ionization
Ions
low polar compounds
Mass spectrometry
Polycyclic aromatic hydrocarbons
post-column addition
Scientific imaging
sodium chloroaurate
title Electrospray ionization mass spectrometric detection of low polar compounds by adding NaAuCl4
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