V. S. Sevast’yanovb,z, E. M. Galimova, N. E. Babulevichb, E. N. Tyurinaa, and A. A. Arzhannikova
aVernadskii Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
bNational Research Centre Kurchatov Institute, Moscow, 123182 Russia
Received July 7, 2014
Abstract—The oxidation and reduction of organic compounds in the gaseous, liquid, and solid states were
studied using a Delta Plus XP isotope mass spectrometer. The oxidation and reduction were performed for sub-
stances with simple and complex molecular structures: methane (natural gas standard RM 8561 HGS3), etha-
nol, pyridine, benzyl alcohol, n-undecane, and cysteine; the reduction was performed for water and methanol.
Based on these data, it was concluded that the complex organic compounds were almost completely oxidized,
while water and oxygen-containing organic substances were completely reduced in the developed electrochem-
ical solid-electrolyte reactor (SER). The use of this reactor in the optimum mode did not change the isotope
composition of carbon and hydrogen in the analytes. SER can successfully replace the oxidation and reduction
reactors used in isotope-ratio mass spectrometry.
Keywords: solid-electrolyte reactor, zirconia, isotope-ratio mass spectrometry, oxidation, reduction, organic
compounds, water
DOI: 10.1134/S1023193515050110
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