A simplified thin-layer chromatography system for the detection of commonly abused basic drugs

Area of Science:

• Forensic Chemistry
• Analytical Chemistry
• Toxicology

Background:

• Accurate and efficient detection of drugs of abuse in biological samples is crucial for clinical and forensic applications.
• Existing methods for drug screening may require complex procedures or specialized equipment.
• Opioid abuse remains a significant public health concern, necessitating reliable diagnostic tools.

Purpose of the Study:

• To describe a simple and effective method for detecting commonly abused opioid drugs and their metabolites in urine.
• To establish a rapid screening technique suitable for routine analysis.
• To achieve sensitive detection limits for opioid drug identification.

Main Methods:

• Urine samples (20 mL) were extracted using a buffered ToxElut solid phase extraction column.
• Extracted analytes were analyzed using a single thin-layer chromatography (TLC) plate.
• Spot visualization was performed by spraying the TLC plate with iodoplatinate reagent after acidification with dilute sulfuric acid.

Main Results:

• The method allows for the simultaneous detection of commonly abused opioid drugs on one TLC plate.
• High sensitivity was achieved, with detection limits around 1 mg/L for most tested drugs.
• The procedure is straightforward, involving simple extraction and visualization steps.

Conclusions:

• The described method provides a simple, sensitive, and efficient approach for the detection of opioid drugs in urine.
• This technique is suitable for rapid screening and can aid in the diagnosis and monitoring of drug abuse.
• The solid-phase extraction coupled with TLC offers a cost-effective alternative for drug testing.