Roberta Z. Hahn

Novo Hamburgo, RS, Brazil

Last Updated: 09/26/2026

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Found 35 publications

Determination of 13 per- and polyfluoroalkyl substances in human plasma samples using LC-MS/MS: application to capillary microsamples.

Determination of 13 per- and polyfluoroalkyl substances in human plasma samples using LC-MS/MS: application to capillary microsamples.

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

Published: April 06, 2026

Quantification of amikacin, gentamicin, and tobramycin in capillary plasma microsamples by LC-MS/MS.

Quantification of amikacin, gentamicin, and tobramycin in capillary plasma microsamples by LC-MS/MS.

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

Published: May 08, 2025

Determination of testosterone by liquid Chromatography-Tandem mass spectrometry in dried plasma obtained from capillary blood using the HealthID PSD microsampling device.

Determination of testosterone by liquid Chromatography-Tandem mass spectrometry in dried plasma obtained from capillary blood using the HealthID PSD microsampling device.

Journal: Clinica chimica acta; international journal of clinical chemistry

Published: April 21, 2025

Therapeutic Drug Monitoring-Based Population Pharmacokinetics of Amikacin in Patients at a Teaching Hospital.

Therapeutic Drug Monitoring-Based Population Pharmacokinetics of Amikacin in Patients at a Teaching Hospital.

Journal: Antibiotics (Basel, Switzerland)

Published: April 16, 2025

Determination of drugs of abuse and metabolites in plasma microsamples by LC-MS/MS after microQuEChERS extraction.

Determination of drugs of abuse and metabolites in plasma microsamples by LC-MS/MS after microQuEChERS extraction.

Journal: Bioanalysis

Published: September 27, 2024

Amikacin therapeutic drug monitoring: Evaluation of therapy performance and analytical techniques in a developing country setting.

Amikacin therapeutic drug monitoring: Evaluation of therapy performance and analytical techniques in a developing country setting.

Journal: Clinical biochemistry

Published: June 06, 2024

Comparison of vancomycin assays in patients undergoing hemodialysis.

Comparison of vancomycin assays in patients undergoing hemodialysis.

Journal: The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases

Published: April 08, 2024

Determination of meropenem in capillary plasma microsamples using LC-MS/MS.

Determination of meropenem in capillary plasma microsamples using LC-MS/MS.

Journal: Bioanalysis

Published: March 18, 2024

Determination of amphetamines, opioids, cocaine metabolites and 11-nor-9-carboxy-Δ9-tetrahydrocannabinol in urine using biocompatible solid-phase microextraction and ultra-performance LC-MS/MS.

Determination of amphetamines, opioids, cocaine metabolites and 11-nor-9-carboxy-Δ9-tetrahydrocannabinol in urine using biocompatible solid-phase microextraction and ultra-performance LC-MS/MS.

Journal: Bioanalysis

Published: June 24, 2023

Risk assessment of a Brazilian urban population due to the exposure to pyrethroid insecticides during the COVID-19 pandemic using wastewater-based epidemiology.

Risk assessment of a Brazilian urban population due to the exposure to pyrethroid insecticides during the COVID-19 pandemic using wastewater-based epidemiology.

Journal: Chemosphere

Published: May 26, 2023

Evaluation of dried blood spots as an alternative sampling strategy for 5-fluorouracil monitoring: From method development to clinical application.

Evaluation of dried blood spots as an alternative sampling strategy for 5-fluorouracil monitoring: From method development to clinical application.

Journal: Journal of pharmaceutical and biomedical analysis

Published: March 25, 2023

Evaluation of hemaPEN® sampling device for measurement of cocaine and metabolites in capillary blood by LC-MS/MS.

Evaluation of hemaPEN® sampling device for measurement of cocaine and metabolites in capillary blood by LC-MS/MS.

Journal: Bioanalysis

Published: December 05, 2022

Showing 1-12 of 35

Last Updated: 09/26/2026