GC FORENSICS EQUIPO 4

GC in Forensic Science

Eréndira Patricia Pérez Muñoz a01133497 Beatriz Estefania de los Santos Gonález a00834079 Manuel Jaime Rodríguez a01166368

Gas Chromatography for the detection of classic and new psychoactive substances in urine

Challenge

• Increase of new synthetic psychoactive substances since 2009 (e.g opioids, cathinones and cannabinoids).
• This number increased during the covid pandemic, due to limited access to classic drugs.

Importance

To detect these substances in urine to reduce the risk posed to public health by educating inhabitants of the most used drugs and variants.

Insight to the gas chromatography method

Final Result

This method can screen for several psychoactive with different structures from urine within the context of epidemiological test for overdose and toxicity reactions.

Origin, Analytical Characterization, and Use ofHuman Odor in Forensics

Importance

Human odor substance

• As techniques used by the police were revelated on the TV, the criminals became more cautious in letting evidence in the scene of crime.
• Characterization of scents would mean a great breakthrough in forensics, generating more convincing evidence.

Sampling zones

• Axillae, feet, hands, nails, hair.

Types of GC chromatography used

Opportunity areas

Fenantyl, fenantyl analogs and NSO

References

• Marchei et al (2021). Ultra-Highh Performance Liquid Chormatography-Hgh Resolution Mass Spectrometry and High sensitivity Gas Chromatography-Mass Spectrometry Screening of Classic Drugs and New Psychoactive Substances and Metabolites in Urine of Consumers. International Journal of Molecular Sciences, 2021, 22, 4000.
• Cuzuel, V., Cognon, G., Rivals, I., Sauleau, C., Heulard, F., Thiébaut, D., & Vial, J. (2017). Origin, Analytical Characterization, and Use of Human Odor in Forensics. Journal of Forensic Sciences, 62(2), 330–350. https://doi.org/10.1111/1556-4029.13394

*QUESTIONS*