Marthinus J. Van Der Merwe

University Of Cape Town
Cape Town, WC, South Africa

Last Updated: 09/26/2026

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Found 11 publications

Validation and clinical application of an LC-MS/MS method designed to simultaneously measure seven second-line TB drugs and two metabolites in human lung tissue.

Validation and clinical application of an LC-MS/MS method designed to simultaneously measure seven second-line TB drugs and two metabolites in human lung tissue.

Journal: Journal of pharmaceutical and biomedical analysis

Published: May 15, 2025

Development and validation of an LC-MS/MS method for quantifying total and unbound doravirine in human plasma.

Development and validation of an LC-MS/MS method for quantifying total and unbound doravirine in human plasma.

Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences

Published: November 08, 2024

Development and validation of a liquid chromatography-tandem mass spectrometry assay for the simultaneous analysis of isoniazid and pyrazinamide in cerebrospinal fluid.

Development and validation of a liquid chromatography-tandem mass spectrometry assay for the simultaneous analysis of isoniazid and pyrazinamide in cerebrospinal fluid.

Journal: Journal of pharmaceutical and biomedical analysis

Published: August 23, 2024

Validation and application of an online extraction and liquid chromatography tandem mass spectrometry assay for the analysis of delamanid and its DM-6705 metabolite in human breast milk.

Validation and application of an online extraction and liquid chromatography tandem mass spectrometry assay for the analysis of delamanid and its DM-6705 metabolite in human breast milk.

Journal: Journal of pharmaceutical and biomedical analysis

Published: March 12, 2024

Development and validation of a liquid chromatography tandem mass spectrometry assay for the analysis of bedaquiline and M2 in breast milk.

Development and validation of a liquid chromatography tandem mass spectrometry assay for the analysis of bedaquiline and M2 in breast milk.

Journal: Journal of mass spectrometry and advances in the clinical lab

Published: June 07, 2023

Liquid chromatography-tandem mass spectrometry analysis of delamanid and its metabolite in human cerebrospinal fluid using protein precipitation and on-line solid-phase extraction.

Liquid chromatography-tandem mass spectrometry analysis of delamanid and its metabolite in human cerebrospinal fluid using protein precipitation and on-line solid-phase extraction.

Journal: Journal of pharmaceutical and biomedical analysis

Published: December 19, 2022

A validated liquid chromatography-tandem mass spectrometry assay for the analysis of isoniazid and its metabolite acetyl-isoniazid in urine.

A validated liquid chromatography-tandem mass spectrometry assay for the analysis of isoniazid and its metabolite acetyl-isoniazid in urine.

Journal: Journal of mass spectrometry and advances in the clinical lab

Published: December 09, 2022

Validation of a quantitative multiplex LC-MS/MS assay of carvedilol, enalaprilat, and perindoprilat in dried blood spots from heart failure patients and its cross validation with a plasma assay.

Validation of a quantitative multiplex LC-MS/MS assay of carvedilol, enalaprilat, and perindoprilat in dried blood spots from heart failure patients and its cross validation with a plasma assay.

Journal: Journal of mass spectrometry and advances in the clinical lab

Published: September 22, 2022

Validation and application of a quantitative LC-MS/MS assay for the analysis of first-line anti-tuberculosis drugs, rifabutin and their metabolites in human breast milk.

Validation and application of a quantitative LC-MS/MS assay for the analysis of first-line anti-tuberculosis drugs, rifabutin and their metabolites in human breast milk.

Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences

Published: July 29, 2022

Validation and application of a quantitative liquid chromatography tandem mass spectrometry assay for the analysis of rifapentine and 25-O-desacetyl rifapentine in human milk.

Validation and application of a quantitative liquid chromatography tandem mass spectrometry assay for the analysis of rifapentine and 25-O-desacetyl rifapentine in human milk.

Journal: Journal of pharmaceutical and biomedical analysis

Published: January 19, 2022

An Electrospray Ionization Mass Spectrometry Study on the "In Vacuo" Hetero-Oligomers Formed by the Antimicrobial Peptides, Surfactin and Gramicidin S.

An Electrospray Ionization Mass Spectrometry Study on the "In Vacuo" Hetero-Oligomers Formed by the Antimicrobial Peptides, Surfactin and Gramicidin S.

Journal: Journal of the American Society for Mass Spectrometry

Published: December 07, 2016

Showing 1-11 of 11

Last Updated: 09/26/2026