Sulfur stable isotope distribution of polysulfide anions in an (NH 4)2Sn aqueous solution

Alon Amrani; Alexey Kamyshny; Ovadia Lev; Zeev Aizenshtat

doi:10.1021/ic051748r

Sulfur stable isotope distribution of polysulfide anions in an (NH ₄)₂S_n aqueous solution

Alon Amrani, Alexey Kamyshny, Ovadia Lev, Zeev Aizenshtat^*

^*Corresponding author for this work

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

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Abstract

Methylation of polysulfides [(NH₄)₂S_n)] by reaction with CF₃S_O3-CH₃ followed by separation of the produced dimethylpolysulfides by liquid chromatography and subsequent highly accurate stable isotope analysis by a continuous-flow isotope ratio mass spectrometer shows that polysulfide anions in an aqueous solution exchange isotopes with the other sulfur species in the system. It demonstrates for the first time that polysulfide anions are ³⁴S-enriched in equilibrium relative to total sulfur as a function of their sulfur chain length.

Original language	English
Pages (from-to)	1427-1429
Number of pages	3
Journal	Inorganic Chemistry
Volume	45
Issue number	4
DOIs	https://doi.org/10.1021/ic051748r
State	Published - 20 Feb 2006

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abstract = "Methylation of polysulfides [(NH4)2Sn)] by reaction with CF3SO3-CH3 followed by separation of the produced dimethylpolysulfides by liquid chromatography and subsequent highly accurate stable isotope analysis by a continuous-flow isotope ratio mass spectrometer shows that polysulfide anions in an aqueous solution exchange isotopes with the other sulfur species in the system. It demonstrates for the first time that polysulfide anions are 34S-enriched in equilibrium relative to total sulfur as a function of their sulfur chain length.",

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AU - Lev, Ovadia

AU - Aizenshtat, Zeev

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AB - Methylation of polysulfides [(NH4)2Sn)] by reaction with CF3SO3-CH3 followed by separation of the produced dimethylpolysulfides by liquid chromatography and subsequent highly accurate stable isotope analysis by a continuous-flow isotope ratio mass spectrometer shows that polysulfide anions in an aqueous solution exchange isotopes with the other sulfur species in the system. It demonstrates for the first time that polysulfide anions are 34S-enriched in equilibrium relative to total sulfur as a function of their sulfur chain length.

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Sulfur stable isotope distribution of polysulfide anions in an (NH ₄)₂S_n aqueous solution

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