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Viser treff 1-50 av 150 << Forrige 1 2 3    Neste >>

2019
1 Ask, Kristine Skoglund; Lid, Marthe; Øiestad, Elisabeth Leere; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Liquid-phase microextraction in 96-well plates - calibration and accurate quantification of pharmaceuticals in human plasma samples. Journal of Chromatography A 2019 ;Volum 1602. s. 117-123
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2 Gjelstad, Astrid.
Three-phase hollow fiber liquid-phase microextraction and parallel artificial liquid membrane extraction. TrAC. Trends in analytical chemistry 2019 ;Volum 113. s. 25-31
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3 Vårdal, Linda; Øiestad, Elisabeth Leere; Gjelstad, Astrid; Jensen, Henrik; Pedersen-Bjergaard, Stig.
Electromembrane extraction with solvent modification of the acceptor solution: improved mass transfer of drugs of abuse from human plasma. Bioanalysis 2019 ;Volum 11.(8) s. 755-771
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2018
4 Andersen, Ida Kristine Lysgaard; Rosting, Cecilie; Gjelstad, Astrid; Halvorsen, Trine Grønhaug.
Volumetric absorptive MicroSampling vs. other blood sampling materials in LC-MS-based protein analysis - preliminary investigations. Journal of Pharmaceutical and Biomedical Analysis 2018 ;Volum 156. s. 239-246
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5 Ask, Kristine Skoglund; Øiestad, Elisabeth Leere; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Dried blood spots and parallel artificial liquid membrane extraction – A simple combination of microsampling and microextraction. Analytica Chimica Acta 2018 ;Volum 1009. s. 56-64
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6 Huang, Chuixiu; Shen, Xiantao; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Investigation of alternative supported liquid membranes in electromembrane extraction of basic drugs from human plasma. Journal of Membrane Science 2018 ;Volum 548. s. 176-183
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7 Olsen, Katharina Norgren; Ask, Kristine Skoglund; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Parallel artificial liquid membrane extraction of psychoactive analytes: a novel approach in therapeutic drug monitoring. Bioanalysis 2018 ;Volum 10.(6) s. 385-395
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8 Rosting, Cecilie; Tran, Elin Vyvy; Gjelstad, Astrid; Halvorsen, Trine Grønhaug.
Determination of the Low-Abundant Protein Biomarker hCG from Dried Matrix Spots using Immunocapture and Nano Liquid Chromatography Mass Spectrometry. Journal of Chromatography B: Biomedical Sciences and Applications 2018 ;Volum 1077-1078. s. 44-51
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9 Skjærvø, Øystein; Pilarova, Veronika; Khalikova, Maria; Reubsaet, Leon; Halvorsen, Trine Grønhaug; Gjelstad, Astrid; Øiestad, Elisabeth Leere; Lundanes, Elsa; Wilson, Steven Ray Haakon; Pedersen-Bjergaard, Stig.
Those Who Can, Teach: Pharma Stars. The Analytical Scientist 2018 ;Volum 1118. s. 40-45
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10 Skjærvø, Øystein; Pilarova, Veronika; Khalikova, Maria; Reubsaet, Leon; Halvorsen, Trine Grønhaug; Gjelstad, Astrid; Øiestad, Elisabeth Leere; Lundanes, Elsa; Wilson, Steven Ray Haakon; Pedersen-Bjergaard, Stig.
Those Who Can, Teach: Pharma Stars. The Analytical Scientist 2018 ;Volum 1118. s. 40-45
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11 Vårdal, Linda; Wong, Gladys; Øiestad, Åse Marit Leere; Pedersen-Bjergaard, Stig; Gjelstad, Astrid; Øiestad, Elisabeth Leere.
Rapid determination of designer benzodiazepines, benzodiazepines, and Z-hypnotics in whole blood using parallel artificial liquid membrane extraction and UHPLC-MS/MS. Analytical and Bioanalytical Chemistry 2018 ;Volum 410.(20) s. 4967-4978
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12 Vårdal, Linda; Øiestad, Elisabeth Leere; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Electromembrane extraction of substances with weakly basic properties: A fundamental study with benzodiazepines. Bioanalysis 2018 ;Volum 10.(10) s. 769-781
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2017
13 Fernández, Elena; Vårdal, Linda; Vidal, Lorena; Canals, Antonio; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Complexation-mediated electromembrane extraction of highly polar basic drugs – a fundamental study with catecholamines in urine as model system. Analytical and Bioanalytical Chemistry 2017 ;Volum 409. s. 4215-4223
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14 Gjelstad, Astrid.
Does Parallel Artificial Liquid Membrane Extraction Match the Requirements for an Applicable and High-Throughput Sample Preparation Method from Biological Matrices?. HPLC2017; 2017-06-18 - 2017-06-22
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15 Gjelstad, Astrid; Andresen, Alf Terje; Dahlgren, Anders; Gundersen, Thomas Erik; Pedersen-Bjergaard, Stig.
High-throughput liquid-liquid extraction in 96-well format: Parallel artificial liquid membrane extraction. LC GC Europe 2017 ;Volum 30.(1) s. 10-17
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16 Gjelstad, Astrid; Andresen, Alf Terje; Dahlgren, Anders; Gundersen, Thomas Erik; Pedersen-Bjergaard, Stig.
High-throughput liquid-liquid extraction in 96-well format: Parallel artificial liquid membrane extraction. LC GC North America 2017 ;Volum 35.(3) s. 192-196
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17 Huang, Chuixiu; Chen, Zhiliang; Gjelstad, Astrid; Pedersen-Bjergaard, Stig; Shen, Xiantao.
Electromembrane extraction. TrAC. Trends in analytical chemistry 2017 ;Volum 95. s. 47-56
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18 Huang, Chuixiu; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Electromembrane extraction with alkylated phosphites and phosphates as supported liquid membranes. Journal of Membrane Science 2017 ;Volum 526. s. 18-24
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19 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Liquid-phase microextraction (LPME) – From conceptual development and into routine laboratories. 19th International Symposium on Advances in Extraction Technologies; 2017-06-27 - 2017-06-30
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20 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Microextraction through supported liquid membranes – Tuning the extraction chemistry for biomedical and pharmaceutical applications. 33rd International Symposium on Microscale Separations and Bioanalysis; 2017-03-26 - 2017-03-29
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21 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Recent trends in drug analysis using liquid-phase microextraction. Recent Developments in Pharmaceutical Analysis 2017; 2017-09-20 - 2017-09-23
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22 Pedersen-Bjergaard, Stig; Gjelstad, Astrid; Rasmussen, Knut Einar.
Arrested development – Given ongoing challenges in sample preparation and lack of novel alternatives, is it time to give liquid-phase microextraction (LPME) a second chance?. The Analytical Scientist 2017 ;Volum 49. s. 46-49
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23 Pedersen-Bjergaard, Stig; Huang, Chuixiu; Gjelstad, Astrid.
Electromembrane extraction – Recent trends and where to go. Journal of Pharmaceutical Analysis 2017 ;Volum 7.(3) s. 141-147
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24 Pilarova, Veronika; Sutani, Mumtaz; Ask, Kristine Skoglund; Novakova, Lucie; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
One-step extraction of polar drugs from plasma by parallel artificial liquid membrane extraction. Journal of chromatography. B 2017 ;Volum 1043. s. 25-32
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25 Restan, Magnus Saed; Jensen, Henrik; Shen, Xiantao; Huang, Chuixiu; Martinsen, Ørjan Grøttem; Kubáň, Pavel; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Comprehensive study of buffer systems and local pH effects in electromembrane extraction. Analytica Chimica Acta 2017 ;Volum 984. s. 116-123
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26 Rosting, Cecilie; Gjelstad, Astrid; Halvorsen, Trine Grønhaug.
Expanding the knowledge on dried blood spots and LC-MS-based protein analysis: two different sampling materials and six protein targets. Analytical and Bioanalytical Chemistry 2017 ;Volum 409.(13) s. 3383-3392
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27 Vårdal, Linda; Askildsen, Hilde- Merete; Gjelstad, Astrid; Øiestad, Elisabeth Leere; Edvardsen, Hilde Marie Erøy; Pedersen-Bjergaard, Stig.
Parallel artificial liquid membrane extraction of new psychoactive substances in plasma and whole blood. Journal of chromatography. B 2017 ;Volum 1048. s. 77-84
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28 Vårdal, Linda; Gjelstad, Astrid; Huang, Chuixiu; Øiestad, Elisabeth Leere; Pedersen-Bjergaard, Stig.
Efficient discrimination and removal of phospholipids during electromembrane extraction from human plasma samples. Bioanalysis 2017 ;Volum 9.(8) s. 631-641
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2016
29 Ask, Kristine Skoglund; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Dried blood spots on carboxymethyl cellulose sheets: Rapid sample preparation based on dissolution and precipitation. Chromatographia 2016 ;Volum 79. s. 509-514
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30 Ask, Kristine Skoglund; Turgay, Bardakci; Parmer, Marthe Petrine; Halvorsen, Trine Grønhaug; Øiestad, Elisabeth Leere; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Parallel artificial liquid membrane extraction as an efficient tool for removal of phospholipids from human plasma. Journal of Pharmaceutical and Biomedical Analysis 2016 ;Volum 129. s. 229-236
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31 Ask, Kristine Skoglund; Øiestad, Elisabeth Leere; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Parallel Artificial Liquid Membrane Extraction - En ny metode for fjerning av fosfolipider. Det 22. Norske Symposium i Kromatografi; 2016-01-10 - 2016-01-12
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32 Gjelstad, Astrid.
Microextraction from aqueous samples based on supported liquid membranes - recent trends and new applications. Gjesteforelesning; 2016-07-04 - 2016-07-04
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33 Gjelstad, Astrid.
Parallel Artificial Liquid Membrane Extraction - A New Way to Perform Selective Sample Preparation from Biological Matrices. 22. Norske Symposium i Kromatografi; 2016-01-10 - 2016-01-12
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34 Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Parallel Artificial Liquid Membrane Extraction as a Selective, Single-step Sample Preparation Method of Human Plasma Prior to LC-MS. 44th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2016); 2016-06-19 - 2016-06-24
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35 Huang, Chuixiu; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Organic solvents in electromembrane extraction: recent insights. Analitical chemistry (Tel Aviv, 1993) 2016 ;Volum 35.(4) s. 169-183
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36 Huang, Chuixiu; Jensen, Henrik; Seip, Knut Fredrik; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Mass transfer in electromembrane extraction - The link between theory and experiments. Journal of Separation Science 2016 ;Volum 39.(1) s. 188-197
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37 Huang, Chuixiu; Seip, Knut Fredrik; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Electromembrane extraction of polar basic drugs from plasma with pure bis(2-ethylhexyl) phosphite as supported liquid membrane. Analytica Chimica Acta 2016 ;Volum 934. s. 80-87
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38 Kuban, Pavel; Boceka, Petr; Seip, Knut Fredrik; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Multiple phase micro-electromembrane extraction for selective pretreatment of raw biological samples. 18th International Symposium on Advances in Extraction Technologies & 22nd International Symposium on Separation Science; 2016-07-03 - 2016-07-06
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39 Kuban, Pavel; Seip, Knut Fredrik; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Micro-electromembrane extraction using multiple free liquid membranes and acceptor solutions – Towards selective extractions of analytes based on their acid-base strength. Analytica Chimica Acta 2016 ;Volum 943. s. 64-73
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40 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Drug analysis using liquid-phase microextraction – recent trends and where to go. 27th International Symposium on Pharmaceutical and Biomedical Analysis; 2016-11-13 - 2016-11-16
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41 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Liquid-phase microextraction – recent trends and where to go?. 18th International Symposium on Advances in Extraction Technologies & 22nd International Symposium on Separation Science; 2016-07-03 - 2016-07-06
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42 Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Parallel artificial liquid membrane extraction as an efficient tool for removal of phospholipids from human plasma. 31st International Symposium on Chromatography; 2016-08-28 - 2016-09-01
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43 Rosting, Cecilie; Sæ, Christine Østvik; Gjelstad, Astrid; Halvorsen, Trine Grønhaug.
Evaluation of water-soluble DBS for small proteins: A conceptual study using insulin as a model analyte. Bioanalysis 2016 ;Volum 8.(10) s. 1051-1065
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44 Øiestad, Elisabeth Leere; Øiestad, Åse Marit Leere; Gjelstad, Astrid; Karinen, Ritva Anneli.
Oral fluid drug analysis in the age of new psychoactive substances. Bioanalysis 2016 ;Volum 8.(7) s. 691-710
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2015
45 Ask, Kristine Skoglund; Halvorsen, Trine Grønhaug; Pedersen-Bjergaard, Stig; Gjelstad, Astrid.
Phospholipid removal from human plasma samples by Parallel Artificial Liquid Membrane Extraction. 42nd International Symposium on High Performance Liquid Phase Separations and Related Techniques; 2015-06-21 - 2015-06-25
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46 Gjelstad, Astrid.
Parallel Artificial Liquid Membrane Extraction – A New, Selective Sample Preparation Method from Biological Matrices. 26th International Symposium on Pharmaceutical and Biomedical Analysis (PBA2015); 2015-07-05 - 2015-07-08
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47 Gjelstad, Astrid.
Parallel Artificial Liquid Membrane Extraction – A New Way to Perform Selective Sample Preparation from Biological Matrices. HPLC 2015; 2015-06-21 - 2015-06-25
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48 Gjelstad, Astrid; Pedersen-Bjergaard, Stig; Seip, Knut Fredrik.
Electromembrane extraction as a rapid and selective miniaturized sample preparation technique for biological fluids. Bioanalysis 2015 ;Volum 7.(17) s. 2203-2209
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49 Gjelstad, Astrid; Seip, Knut Fredrik.
Sample extraction techniques for biological samples: Recent advances and novel applications. Bioanalysis 2015 ;Volum 7.(17) s. 2133-2134
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50 Huang, Chuixiu; Gjelstad, Astrid; Pedersen-Bjergaard, Stig.
Exhaustive extraction of peptides by electromembrane extraction. Analytica Chimica Acta 2015 ;Volum 853.(1) s. 328-334
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