Headspace analysis of aqueous solutions coupled with a selective absorption of the gas-extractant

Authors

  • А. Ю. Писарев Pisarev Aleksey Y. - post-graduate student of analytical chemistry department of institute of chemistry, St. Petersburg state university, St. Petersburg, pisarev@alexey.by
  • О. В. Родинков Rodinkov Oleg V. - Dr. Sc. Chem., the professor of analytical chemistry department of institute of chemistry, St. Petersburg state university, St.Petersburg, rodinkov@rambler.ru
  • Л. Н. Москвин Moskvin Leonid N. - Dr. Sc. Chem., the professor, head of analytical chemistry department of institute of chemistry, St. Petersburg state university, St.Petersburg, moskvinln@yandex.ru

DOI:

https://doi.org/10.17308/sorpchrom.2015.15/262

Keywords:

gas chromatography, aromatic and aliphatic hydrocarbons, headspace analysis, concentrating, gas extraction, carbon dioxide, gas-extractant sorption

Abstract

A new headspace gas chromatographic technique was developed, involving analyte concentrating
through selective sorbtion of gas-extractant. Carbon dioxide was used as a gas-extractant due to opportunity
to be sorbed selectively by solid sodium hydroxide. In instance of aromatic and aliphatic hydrocarbons is
shown possibility to increase analyte concentration in gas phase and, thus, sensitivity by a factor of at least
ten in case of no reaction between analytes and sorbent.

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Published

2018-02-19

Issue

Vol. 15 No. 1 (2015): Sorption and chromatographic processes

Section

Статьи

How to Cite

Headspace analysis of aqueous solutions coupled with a selective absorption of the gas-extractant. (2018). Sorbtsionnye I Khromatograficheskie Protsessy, 15(1), 116-126. https://doi.org/10.17308/sorpchrom.2015.15/262

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