je5b00844_si_001.pdf (149.28 kB)
Adsorption and Desorption of Isoflurane on Carbonaceous Adsorbents and Zeolites at Low Concentrations in Gas Phase
journal contribution
posted on 2016-01-14, 00:00 authored by Roman Ortmann, Christoph Pasel, Michael Luckas, Ruben Heimböckel, Sebastian Kraas, Jürgen Bentgens, Michael Fröba, Dieter BathenThis
paper presents adsorption isotherms and desorption data of
isoflurane from a carrier gas (nitrogen) on different adsorbents at
25 °C and 1 bar. As adsorbents activated carbons, newly developed
carbon adsorbents and dealuminated zeolites were used. The adsorption
of isoflurane was studied in trace level concentrations up to 1200
ppmV. Common isotherm equations were fitted to the measured
data. The adsorption isotherms show distinctly different capacities
depending on the polarity and the pore structure of the adsorbent.
The investigation of desorption reveals weak physical interactions
between isoflurane and the surface of most adsorbents.