Sulfur stable isotope distribution of polysulfide anions in an (NH4)2Sn aqueous solution

被引：43

作者：

Amrani, A

Kamyshny, A

Lev, O

Aizenshtat, Z ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Casali Inst Appl Chem, IL-91904 Jerusalem, Israel

[2] Hebrew Univ Jerusalem, Environm Chem Lab, Inst Chem, IL-91904 Jerusalem, Israel

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 04期

关键词：

D O I：

10.1021/ic051748r

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Methylation of polysulfides [(NH4)(2)S-n)] by reaction with CF3SO3CH3 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 S-34-enriched in equilibrium relative to total sulfur as a function of their sulfur chain length.

引用

页码：1427 / 1429

页数：3

共 19 条

[1]

AIZENSHTAT Z, 2004, SPECIAL PUBLICATION, V8, P15

[2] Mechanisms of sulfur introduction chemically controlled:: δ34S imprint [J].