Marta Concheiro-Guisan

Marta Concheiro-Guisan

Assistant Professor
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Ph.D. in Forensic Toxicology, Department of Anatomical Pathology and Forensic Sciences, University of Santiago de Compostela, Spain


Pharm. D. (Licenciatura de Farmacia), University of Santiago de Compostela, Spain


Marta Concheiro is Assistant Professor of Forensic Toxicology at John Jay College of Criminal Justices, City University of New York. She received her Diploma M.Sc. in Pharmacy and her Ph.D. in Toxicology in 2002 and 2006, respectively, both from the University of Santiago de Compostela, Spain. During her Ph.D., she did trainings at foreign institutions, specifically at the Institute de Médicine Légale et de Médicine Social in Strasbourg (France) and at the Instituto Nacional de Medicina Legal in Lisbon (Portugal). From 2008-2009, she was a Postdoctoral Research Fellow at the Chemistry and Drug Metabolism, at the National Institute on Drug Abuse (NIDA), NIH, in Baltimore, MD. After that, she came back to the University of Santiago de Compostela, where she was Researcher and Teacher Assistant of Forensic Toxicology for 2 years. From 2012 to 2014 Marta Concheiro was Research Scientist at NIDA. Dr. Concheiro is well trained in a broad range of technical fields in toxicology, including sample preparation (solid phase extraction, liquid-liquid extraction), and analytical techniques (liquid-chromatography coupled to simple or tandem mass spectrometry, high resolution mass spectrometry). She has great experience in new analytical methods’ development and validation, and in different kind of specimens (plasma, blood, urine, oral fluid, hair, sweat, tissues). She has actively participated in Drugs and Driving Research Projects, including the ROSITA (Road Side Testing Assesment) and DRUID (Driving Under the Influence of Drugs) European Projects, and in Clinical Protocols at NIDA. Dr. Concheiro has more than 80 publications in peer-reviewed journals, and she has participated presenting her work at more than 30 professional toxicology meetings.

Professional Memberships

- Member of the International Association of Forensic Toxicologists (TIAFT) since 2004.

§ TIAFT Young Scientist Committee Member from November 2014 to August 2018.


- Member of the Society of Hair Testing (SOHT) since 2009.


- Member of the International Association of Therapeutic Drug Monitoring and Clinical Toxicology (IATDMCT) since 2010.


- Member of the Society of Forensic Toxicologists (SOFT) since 2012.


- Member of the Council of Forensic Science Educators (COFSE) since 2017.

§ COFSE Higher Education Committee Member since 2018.


- Member of the Northeastern Association of Forensic Scientists (NEAFS) since 2018.


- Member of the American Academy of Forensic Sciences (AAFS) since 2019.

Research Summary

  • Development and validation of analytical methods by gas and liquid chromatography tandem mass spectrometry.

  • Detection and interpretation of licit and illicit drug exposure during pregnancy.

  • Wastewater analysis of licit and illicit drugs.

  • Study of alternative matrices, hair, oral fluid and drug blood spots, and their applications in clinical and forensic toxicology. 

  • Toxicological study of the new psychoactive substances, including synthetic opioids, cannabinoids and cathinones .