title: Coupling of solid-phase microextraction continuous bed (monolithic) capillaries with capillary zone electrophoresis for direct analysis of drugs in biological fluids.
abstract: Hyperlink robust biocompatible solid-phase microextraction (SPME) devices were prepared using continuous bed (monolithic) restricted-access media (RAM) as the SPME capillary insert. The RAM-based SPME approach was able to simultaneously separate proteins from a biological sample, while directly extracting the active components of caffeine, paracetamol and acetylsalicylic acid from the drug NeoCitramonum. The devices were interfaced with a CZE system and fully automated analysis for sample preconcentration, desorption, separation and quantification of analytes was evaluated. Comparative study of in-line coupled SPME-CZE using RAM and RP capillary inserts was carried out. Using an SPME (RAM) insert, the calculated caffeine, paracetamol and acetylsalicylic acid LODs in a bovine plasma sample were 0.3, 0.8 and 1.9 ng/mL, respectively.
authors.affiliation: Department of Chemistry, Faculty of Natural Sciences, Vytautas Magnus University, Kaunas, Lithuania.
authors.forename: Reda
authors.initials: R
authors.lastname: Jarmalaviciene
authors.forename: Michał
authors.initials: M
authors.lastname: Szumski
authors.forename: Olga
authors.initials: O
authors.lastname: Kornysova
authors.forename: Ewa
authors.initials: E
authors.lastname: Kłodzińska
authors.forename: Douglas
authors.initials: D
authors.lastname: Westerlund
authors.forename: Stanislas
authors.initials: S
authors.lastname: Krawczyk
authors.forename: Donatas
authors.initials: D
authors.lastname: Mickevicius
authors.forename: Bogusław
authors.initials: B
authors.lastname: Buszewski
authors.forename: Audrius
authors.initials: A
authors.lastname: Maruska
mesh_terms: D001826:Body Fluids / Q000737:chemistry*; D019075:Electrophoresis, Capillary / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D004364:Pharmaceutical Preparations / Q000032:analysis*
chemical_list: D004364:Pharmaceutical Preparations