Interaction of methoxy- and methylenedioxyamphetamines with carbon and polymeric adsorbents in polar liquids

• Authors: Waldemar Tomaszewski , Vladimir Gun’ko , Roman Leboda , Jadwiga Skubiszewska-Zięba
• Languages of publication: EN

Abstracts

EN

Solid phase extraction (SPE) of methoxy- and methylenedioxyamphetamines from diluted aqueous solutions was investigated on carbon and polymeric adsorbents of different textures and chemical compositions. Those adsorbents were applied cartridges packed with three chemically modified carbons prepared from plum stones (initial A2PS, oxidized A2PS-O, and reduced A2PS-H) and commercially available adsorbents (polymeric LiChrolut EN, graphitized Hypercarb and Carboprep). Several factors influence the recovery rates of amphetamine derivatives such as the polarity of adsorbates (free energy of salvation), the specific surface area and surface composition of adsorbents, and the solvent characteristics. Different combinations of these factors affect the recovery rate (R1) for high- and low-surface area adsorbents. The minimal R1 values are observed for an amphetamine derivative at a maximal solvation effect and for a set of amphetamines adsorbed on graphitized carbons. [...]

Keywords

EN

Amphetamines; Solid phase extraction; Carbon and polymeric adsorbents; Structural characteristics; Free energy of solvation

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2010
• Volume: 8
• Issue: 4
• Pages: 750-757

Dates

published

1 - 8 - 2010

online

17 - 6 - 2010

Contributors

author

Waldemar Tomaszewski

• Department of Chemistry, Warsaw University of Technology, 00-664, Warsaw, Poland

author

Vladimir Gun’ko

• Institute of Surface Chemistry, 03164, Kiev, Ukraine

author

Roman Leboda

• Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland

author

Jadwiga Skubiszewska-Zięba

• Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031, Lublin, Poland

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Identifiers

DOI

10.2478/s11532-010-0042-y