residue analysis

Residue analysis is a scientific technique used to detect and measure traces of substances—such as chemicals, drugs, or contaminants—remaining on or in objects like food, packaging, or surfaces. By analyzing these residues, experts can determine what substances were present, how much, and when they might have been applied or used. This process helps ensure safety, identify contamination, or verify compliance with regulations. Advanced methods like chromatography and mass spectrometry are often employed to accurately identify and quantify these tiny residues, providing valuable information for health, safety, and forensic investigations.