Monika Johansson

Acidic transformation of nordiazepam can affect recovery estimate during trace analysis of diazepam and nordiazepam in environmental water samples by liquid chromatography-tandem mass spectrometry

Barclay, Victoria K. H.; Tyrefors, Niklas L; Johansson, I. Monika; Pettersson, Curt E.

Part of Analytical and Bioanalytical Chemistry, p. 3919-3928, 2019

• DOI for Acidic transformation of nordiazepam can affect recovery estimate during trace analysis of diazepam and nordiazepam in environmental water samples by liquid chromatography-tandem mass spectrometry
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Use and qualification of primary and secondary standards employed in quantitative H-1 NMR spectroscopy of pharmaceuticals

Rundlöf, Torgny; McEwen, Ian; Johansson, Monika; Arvidsson, Torbjörn

Part of Journal of Pharmaceutical and Biomedical Analysis, p. 111-117, 2014

• DOI for Use and qualification of primary and secondary standards employed in quantitative H-1 NMR spectroscopy of pharmaceuticals

A general analytical platform and strategy in search for illegal drugs

Johansson, Monika; Fransson, Dick; Rundlöf, Torgny; Huynh, Ngoc-Hang et al.

Part of Journal of Pharmaceutical and Biomedical Analysis, p. 215-229, 2014

• DOI for A general analytical platform and strategy in search for illegal drugs

Chiral analysis of metoprolol and two of its metabolites, alpha‑hydroxymetoprolol and deaminated metoprolol, in wastewater using liquid chromatography-tandem mass spectrometry

Barclay, Victoria K.H.; Tyrefors, Niklas L.; Johansson, I. Monika; Pettersson, Curt

Part of Journal of Chromatography A, p. 208-217, 2012

• DOI for Chiral analysis of metoprolol and two of its metabolites, alpha‑hydroxymetoprolol and deaminated metoprolol, in wastewater using liquid chromatography-tandem mass spectrometry

Trace analysis of fluoxetine and its metabolite norfluoxetine. Part II: Enantioselective quantification and studies of matrix effects in raw and treated wastewater by solid phase extraction and liquid chromatography-tandem mass spectrometry

Barclay, Victoria K H; Tyrefors, Niklas L; Johansson, I Monika; Pettersson, Curt E

Part of Journal of Chromatography A, p. 105-114, 2012

• DOI for Trace analysis of fluoxetine and its metabolite norfluoxetine. Part II: Enantioselective quantification and studies of matrix effects in raw and treated wastewater by solid phase extraction and liquid chromatography-tandem mass spectrometry

Acidic transformation of nordiazepam can affect recovery estimate during trace analysis of diazepam and nordiazepam in environmental water samples by liquid chromatography-tandem mass spectrometry

Barclay, Victoria K. H.; Tyrefors, Niklas L; Johansson, I. Monika; Pettersson, Curt E.

Part of Analytical and Bioanalytical Chemistry, p. 3919-3928, 2019

• DOI for Acidic transformation of nordiazepam can affect recovery estimate during trace analysis of diazepam and nordiazepam in environmental water samples by liquid chromatography-tandem mass spectrometry
• Download full text (pdf) of Acidic transformation of nordiazepam can affect recovery estimate during trace analysis of diazepam and nordiazepam in environmental water samples by liquid chromatography-tandem mass spectrometry

Use and qualification of primary and secondary standards employed in quantitative H-1 NMR spectroscopy of pharmaceuticals

Rundlöf, Torgny; McEwen, Ian; Johansson, Monika; Arvidsson, Torbjörn

Part of Journal of Pharmaceutical and Biomedical Analysis, p. 111-117, 2014

• DOI for Use and qualification of primary and secondary standards employed in quantitative H-1 NMR spectroscopy of pharmaceuticals

A general analytical platform and strategy in search for illegal drugs

Johansson, Monika; Fransson, Dick; Rundlöf, Torgny; Huynh, Ngoc-Hang et al.

Part of Journal of Pharmaceutical and Biomedical Analysis, p. 215-229, 2014

• DOI for A general analytical platform and strategy in search for illegal drugs

Chiral analysis of metoprolol and two of its metabolites, alpha‑hydroxymetoprolol and deaminated metoprolol, in wastewater using liquid chromatography-tandem mass spectrometry

Barclay, Victoria K.H.; Tyrefors, Niklas L.; Johansson, I. Monika; Pettersson, Curt

Part of Journal of Chromatography A, p. 208-217, 2012

• DOI for Chiral analysis of metoprolol and two of its metabolites, alpha‑hydroxymetoprolol and deaminated metoprolol, in wastewater using liquid chromatography-tandem mass spectrometry

Trace analysis of fluoxetine and its metabolite norfluoxetine. Part II: Enantioselective quantification and studies of matrix effects in raw and treated wastewater by solid phase extraction and liquid chromatography-tandem mass spectrometry

Barclay, Victoria K H; Tyrefors, Niklas L; Johansson, I Monika; Pettersson, Curt E

Part of Journal of Chromatography A, p. 105-114, 2012

• DOI for Trace analysis of fluoxetine and its metabolite norfluoxetine. Part II: Enantioselective quantification and studies of matrix effects in raw and treated wastewater by solid phase extraction and liquid chromatography-tandem mass spectrometry

Screening of counterfeit corticosteroid in creams and ointments by NMR spectroscopy

McEwen, Ian; Elmsjö, Albert; Lehnstrom, Angelica; Hakkarainen, Birgit et al.

Part of Journal of Pharmaceutical and Biomedical Analysis, p. 245-250, 2012

• DOI for Screening of counterfeit corticosteroid in creams and ointments by NMR spectroscopy

Trace analysis of fluoxetine and its metabolite norfluoxetine: Part I: Development of a chiral liquid chromatography-tandem mass spectrometry method for wastewater samples

Barclay, Victoria K. H.; Tyrefors, Niklas L.; Johansson, I. Monika; Pettersson, Curt E.

Part of Journal of Chromatography A, p. 5587-5596, 2011

• DOI for Trace analysis of fluoxetine and its metabolite norfluoxetine: Part I: Development of a chiral liquid chromatography-tandem mass spectrometry method for wastewater samples