Detection of Hazardous Narcotics and New Psychoactive Substances (NPS) with Agilent Resolve - a Handheld SORS System

Importance of Topic

The rise of highly potent opioids such as fentanyls and novel psychoactive substances (NPS) has created critical safety challenges for law enforcement and customs officers. The lethal dose of certain fentanyl analogs can be comparable to a few grains of sugar, and many NPS compounds are active at microgram levels. Traditional sample acquisition and laboratory analysis often require breaking or opening packaging, which increases the risk of accidental exposure and can compromise evidence integrity.

Objectives and Study Overview

This application note evaluates the performance of the Agilent Resolve handheld Raman system, which utilizes spatially offset Raman spectroscopy (SORS) to identify hazardous narcotics and NPS through various opaque or colored barriers. The key goals are to demonstrate the system’s ability to scan sealed packages without sample preparation, to assess library coverage for controlled substances, and to highlight operational benefits for field deployments.

Methodology and Instrumentation

Operators employed the Agilent Resolve SORS system equipped with an 830 nm laser source and proprietary spatial offset optics. The instrument’s onboard library contains over 300 controlled substances and 200 cutting agents, updated regularly by international institutions. Through-barrier measurements were performed on a variety of real-world packaging materials without prior knowledge of contents, enabling rapid nondestructive screening.

Results and Discussion

Testing across expert laboratories in the UK, USA, and China confirmed that the Resolve system reliably identified fentanyl, carfentanil, methoxyacetyl-fentanyl, NPS variants, amphetamines, cocaine, and heroin concealed behind multiple barrier types. Barriers evaluated included:

• Post packs and padded mailers
• Brown paper and bubble wrap
• Opaque plastics (polyethylene, polypropylene, PVC)
• Glass and card stock

Scans typically completed in under one minute, delivering high-quality spectra with reduced fluorescence interference compared to conventional Raman. The ability to preserve sample integrity and maintain chain-of-custody was demonstrated through nondestructive analysis.

Benefits and Practical Applications

• Enhanced safety: True through-barrier screening minimizes direct contact with hazardous materials.
• Comprehensive library: Coverage of over 300 narcotics, NPS and 200 cutting agents ensures broad detection capabilities.
• Rapid operation: Typical scan times of approximately 60 seconds facilitate high throughput in field settings.
• Evidence preservation: Nondestructive analysis supports legal chain-of-custody and traceability.
• Ease of use: Priority tagging highlights critical matches, supporting rapid decision-making.
• Flexible sampling: Reduced fluorescence and unique optics allow analysis of intact pills and complex mixtures without grinding.

Future Trends and Opportunities

Continued growth in emergent NPS and fentanyl analogs will require ongoing expansion and refinement of spectral libraries. Integration with cloud-based reach-back platforms and advanced chemometric algorithms may further enhance remote support and quantitative analysis. Miniaturization and multi-modal sensor fusion (e.g., combining SORS with infrared or mass-spectrometry-based techniques) represent additional opportunities to improve field deployable hazard detection.

Conclusion

The Agilent Resolve handheld SORS system offers a powerful, nondestructive approach for rapid identification of hazardous narcotics and NPS through common packaging barriers. Its safety features, extensive library, and field-ready design make it a valuable tool for law enforcement, customs, and other security operations.

Reference

No external references were provided in the original document.