Blar i NTNU Open på forfatter "Trones, Roger"
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Conductive vial electromembrane extraction of opioids from oral fluid
Skaalvik, Tonje Gottenberg; Zhou, Chen; Øiestad, Elisabeth Leere; Hegstad, Solfrid; Trones, Roger; Pedersen-Bjergaard, Stig (Peer reviewed; Journal article, 2023)The use of oral fluid as sample matrix has gained significance in the analysis of drugs of abuse due to its non-invasive nature. In this study, the 13 opioids morphine, oxycodone, codeine, O-desmethyl tramadol, ethylmorphine, ... -
Determination of psychoactive drugs in serum using conductive vial electromembrane extraction combined with UHPLC-MS/MS
Skaalvik, Tonje Gottenberg; Øiestad, Elisabeth Leere; Trones, Roger; Pedersen-Bjergaard, Stig; Hegstad, Solfrid (Peer reviewed; Journal article, 2021)Conductive vial electromembrane extraction (EME) with prototype equipment was applied for the first time to extract lipophilic basic drugs from serum. With this equipment, traditional platinum electrodes were replaced with ...