Electrospray ionization mass spectrometric analysis of aqueous polysulfide solutions

Jenny Gun; Alexander D. Modestov; Alexey Kamyshny; Dan Ryzkov; Vitaly Gitis; Anatoly Goifman; Ovadia Lev; Veit Hultsch; Thomas Grischek; Eckhard Worch

doi:10.1007/s00604-004-0179-5

Electrospray ionization mass spectrometric analysis of aqueous polysulfide solutions

Jenny Gun, Alexander D. Modestov, Alexey Kamyshny, Dan Ryzkov, Vitaly Gitis, Anatoly Goifman, Ovadia Lev^*, Veit Hultsch, Thomas Grischek, Eckhard Worch

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

The speciation of polysulfides in aqueous solutions was investigated by electrospray - ion trap and electrospray - time of flight mass spectrometry. The pH dependence of the observed total dissolved polysulfides' concentration followed the trend calculated based on reported thermodynamic constants. However, the observed species' distributions were substantially different from those calculated based on thermodynamic coefficients derived by UV spectroscopy. Notably, large abundances of heptasulfide, octasulfide and nonasulfide species were observed throughout the pH range 6 to 11. The large molecular weight anions had not been reported before in aqueous solutions although indirect evidence had suggested their existence.

Original language	English
Pages (from-to)	229-237
Number of pages	9
Journal	Microchimica Acta
Volume	146
Issue number	3-4
DOIs	https://doi.org/10.1007/s00604-004-0179-5
State	Published - Jun 2004

Keywords

CID
Collision-induced dissociation
ESI-MS
Hydropolysulfides
Polysulfides

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10.1007/s00604-004-0179-5

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title = "Electrospray ionization mass spectrometric analysis of aqueous polysulfide solutions",

abstract = "The speciation of polysulfides in aqueous solutions was investigated by electrospray - ion trap and electrospray - time of flight mass spectrometry. The pH dependence of the observed total dissolved polysulfides' concentration followed the trend calculated based on reported thermodynamic constants. However, the observed species' distributions were substantially different from those calculated based on thermodynamic coefficients derived by UV spectroscopy. Notably, large abundances of heptasulfide, octasulfide and nonasulfide species were observed throughout the pH range 6 to 11. The large molecular weight anions had not been reported before in aqueous solutions although indirect evidence had suggested their existence.",

keywords = "CID, Collision-induced dissociation, ESI-MS, Hydropolysulfides, Polysulfides",

author = "Jenny Gun and Modestov, {Alexander D.} and Alexey Kamyshny and Dan Ryzkov and Vitaly Gitis and Anatoly Goifman and Ovadia Lev and Veit Hultsch and Thomas Grischek and Eckhard Worch",

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T1 - Electrospray ionization mass spectrometric analysis of aqueous polysulfide solutions

AU - Gun, Jenny

AU - Modestov, Alexander D.

AU - Kamyshny, Alexey

AU - Ryzkov, Dan

AU - Gitis, Vitaly

AU - Goifman, Anatoly

AU - Lev, Ovadia

AU - Hultsch, Veit

AU - Grischek, Thomas

AU - Worch, Eckhard

PY - 2004/6

Y1 - 2004/6

N2 - The speciation of polysulfides in aqueous solutions was investigated by electrospray - ion trap and electrospray - time of flight mass spectrometry. The pH dependence of the observed total dissolved polysulfides' concentration followed the trend calculated based on reported thermodynamic constants. However, the observed species' distributions were substantially different from those calculated based on thermodynamic coefficients derived by UV spectroscopy. Notably, large abundances of heptasulfide, octasulfide and nonasulfide species were observed throughout the pH range 6 to 11. The large molecular weight anions had not been reported before in aqueous solutions although indirect evidence had suggested their existence.

AB - The speciation of polysulfides in aqueous solutions was investigated by electrospray - ion trap and electrospray - time of flight mass spectrometry. The pH dependence of the observed total dissolved polysulfides' concentration followed the trend calculated based on reported thermodynamic constants. However, the observed species' distributions were substantially different from those calculated based on thermodynamic coefficients derived by UV spectroscopy. Notably, large abundances of heptasulfide, octasulfide and nonasulfide species were observed throughout the pH range 6 to 11. The large molecular weight anions had not been reported before in aqueous solutions although indirect evidence had suggested their existence.

KW - CID

KW - Collision-induced dissociation

KW - ESI-MS

KW - Hydropolysulfides

KW - Polysulfides

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SN - 0026-3672

VL - 146

SP - 229

EP - 237

JO - Microchimica Acta

JF - Microchimica Acta

IS - 3-4

ER -

Electrospray ionization mass spectrometric analysis of aqueous polysulfide solutions

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Keywords

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