Journal of Analytical Chemistry

, Volume 60, Issue 1, pp 6–11 | Cite as

New design of a sorption device for the preconcentration of organic impurities and their subsequent determination by gas chromatography

  • E. D. Makarov
  • B. V. Stolyarov
  • V. G. Berezkin
  • I. V. Bychinskaya
  • I. G. Zenkevich


A new design of a sorption device for the preconcentration of impurities is proposed, and its characteristics are studied. The device is a flat microconcentrator that operates based on the principle of solid-phase extraction and is intended for the subsequent gas-chromatographic determination without cryofocusing. The new device was tested in the analysis of model vapor—gas mixtures of benzene, toluene, ethylbenzene, and o-xylene. The proposed device with adsorbents such as Tenax GC and polydiphenylphthalide-1 under the conditions of exhaustive extraction reliably determines the simplest aromatic hydrocarbons in vapor—gas mixtures at a level of ~0.01 mg/m3 (lower than MPC); the precision of the results is characterized by a relative standard deviation of 14% or better.


Standard Deviation Chromatography Benzene Toluene Hydrocarbon 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • E. D. Makarov
    • 1
  • B. V. Stolyarov
    • 1
  • V. G. Berezkin
    • 2
  • I. V. Bychinskaya
    • 1
  • I. G. Zenkevich
    • 1
  1. 1.Department of ChemistrySt. Petersburg State UniversitySt. PetersburgRussia
  2. 2.Topchiev Institute of Petrochemical SynthesisRussian Academy of SciencesMoscowRussia

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