Commonly Practiced Quality Control and Quality Assurance Procedures for Gas Chromatography-Mass Spectrometry Analysis...

Area of Science:

• Forensic Toxicology
• Analytical Chemistry
• Mass Spectrometry

Background:

• Forensic urine drug testing requires rigorous scientific and administrative protocols.
• Immunoassay screening must be confirmed by gas chromatography/mass spectrometry (GC/MS).

Purpose of the Study:

• To outline critical policies and procedures for routine GC/MS analysis in forensic laboratories.
• To ensure adequate control and verification of analytical processes in drug testing.

Main Methods:

• Method validation for GC/MS assays.
• Instrument performance monitoring and calibration.
• Implementation of quality control measures and acceptance criteria.

Main Results:

• Detailed review of GC/MS operational parameters.
• Establishment of criteria for positive test result designation.
• Guidelines for sample and batch acceptance and data review.

Conclusions:

• Adherence to standardized GC/MS procedures is crucial for accurate forensic drug testing.
• Robust quality control and data review ensure the reliability of confirmed positive results.