LAUSR

In this work, amphiphilic polymers synthesized from carboxylated carbon nanotubes stabilized high internal phase emulsions (polyHIPEs-CNT-COOH) are demonstrated to be capable of direct extracting zearalenone and zearalanone in samples consisting of oil-water emulsion system. Under optimal conditions, the maximum adsorption capacities for zearalenone and zearalanone are 17.27 mg g-1 and 13.26 mg g-1 . The adsorption is mainly attributed to π-π interaction, hydrophobic interaction and hydrogen-bonding interaction for zearalenone and zearalanone. The adsorption isotherms reveal that the adsorption of zearalenone and zearalanone on polyHIPEs-CNT-COOH follows freundlich model with multilayer and heterogeneous adsorption due to the presence of multiple kinds of adsorption sites. The relative recoveries of the spiked zearalenone and zearalanone in corn juice samples range from 85% to 93% with relative standard deviations lower than 3.52%. The results manifest the high efficiency of amphiphilic polyHIPEs-CNT-COOH for the adsorption and separation of analytes in oil-water emulsion system. This study provides a new perspective in adsorbent engineering for the adsorption application in heterogeneous media. This article is protected by copyright. All rights reserved.