Forensic application of an automated drug-profiling system

Area of Science:

• Analytical Chemistry
• Forensic Toxicology
• Clinical Chemistry

Background:

• The Rapid Emergency Drug Identification (REMEDi) system is an automated drug-profiling system utilizing high-performance liquid chromatography with a multicolumn design.
• The system has demonstrated success in emergency toxicology and clinical analysis of urine and serum.
• It can identify over 500 basic, neutral, and slightly acidic drugs and metabolites.

Purpose of the Study:

• To investigate the forensic applications of the REMEDi system for analyzing whole blood and tissue samples.
• To compare the REMEDi system's performance with traditional laboratory methods in forensic contexts.
• To evaluate the system's effectiveness in expanding the range of detectable drugs in forensic cases.

Main Methods:

• Offline sample extraction was performed for whole blood and tissue samples prior to analysis.
• Approximately 50 drugs were used as standards to validate the preparation method, analytical system, and limit of detection.
• Over 50 forensic cases from a medical examiner's office were analyzed using the combined extraction and automated drug-profiling system.

Main Results:

• The REMEDi system proved effective for screening forensic cases, complementing traditional methods.
• The analysis of whole blood and tissue samples was investigated, with results compared to existing laboratory techniques.
• The study demonstrated an expansion of the detectable drug range through the utilization of the REMEDi system.

Conclusions:

• The REMEDi system serves as a valuable supplementary tool for screening forensic samples.
• The system's capabilities can be extended to analyze biological matrices like whole blood and tissue.
• The REMEDi system enhances drug identification in forensic toxicology, broadening the scope of detectable substances.