Sandra A. Castel
University Of Cape Town
Cape Town, WC, South Africa
Cape Town, WC, South Africa
Last Updated: 09/26/2026
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Found 34 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.
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.
Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
Published: November 08, 2024
Development and validation of an LC-MS/MS multiplex assay for the quantification of bedaquiline, n-desmethyl bedaquiline, linezolid, levofloxacin, and clofazimine in dried blood spots.
Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
Published: November 07, 2024
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
Evaluation of pharmacokinetics of Tenofovir Alafenamide (TAF) and Tenofovir Disoproxil (TDF) in pregnant and postpartum women in South Africa: PrEP-PP PK study.
Journal: Antiviral research
Published: June 05, 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.
Journal: Journal of pharmaceutical and biomedical analysis
Published: March 12, 2024
Rifampicin and protein concentrations in paired spinal versus ventricular cerebrospinal fluid samples of children with tuberculous meningitis.
Journal: The Journal of antimicrobial chemotherapy
Published: June 23, 2023
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
Population Pharmacokinetic Analysis of Rifampicin in Plasma, Cerebrospinal Fluid, and Brain Extracellular Fluid in South African Children with Tuberculous Meningitis.
Journal: Antimicrobial agents and chemotherapy
Published: February 23, 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.
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.
Journal: Journal of mass spectrometry and advances in the clinical lab
Published: December 09, 2022
Last Updated: 09/26/2026