Molecular labels for analysis of amines and diols by spray based ionization-mass spectrometry
Literature Information
Publication Date
2016-06-22
DOI
10.1039/C6AN00907G
Impact Factor
4.616
Authors
S. T. Ayrton, R. G. Cooks, M. Pugia
View Original
Abstract
A family of imidazolium and pyridinium salts was synthesized for the purpose of labeling amines and 1,2-diols for highly sensitivite analysis by mass spectrometry. The chosen mass labels are shown to serve as effective reporters when bound to particles functionalized with amines or 1,2-diols and the binding is reversible. The straightforward synthetic route allows analogous internal standards to be generated quickly. Solvents amenable to electrospray ionization facilitate the rapid liberation of imidazolium and pyridinium mass labels from particles by hydrolysis in aqueous acid, while the acetal bond remains stable in anhydrous or buffered aqueous solution. Detection of the labels is demonstrated at 1 nM and quantitation of mass labels released from particles is also demonstrated.
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Recommended Compounds
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5790-46-5
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C13H21NO2
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6-[2-(Trifluoromethoxy)phenyl]-2-pyridinecarboxylic acid
CAS Number:
887983-48-4
Molecular Formula:
C13H8F3NO3
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Ethyl 2-[(3-bromo-4-pyridinyl)sulfanyl]-2-methylpropanoate
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1352794-86-5
Molecular Formula:
C11H14BrNO2S
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