Hollow-fiber-based supported liquid membrane was modified utilizing nanostructures such as graphite, graphene oxide or nitrogen-doped graphene oxide, for electro-membrane extraction (EME) of imatinib and sunitinib from biological fluids. By applying these conductive nanostructures, a low-voltage EME device (6.0 V) was fabricated. A response surface methodology through central composite design was used to evaluate and optimize effects of various essential factors that influence on normalized recovery. Optimal extraction conditions were set as, 1-octanol with 0.01 % (w/v) graphene oxide functioning as the supported liquid membrane, an extraction time of 17.0 min, pH of the acceptor and the donor phase of 2.8 and 7.9, respectively. The method was successfully applied to quantify imatinib and sunitinib in biological fluids.

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http://dx.doi.org/10.4155/bio-2021-0138DOI Listing

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