Drug screening techniques are based on scientific principles that enable the detection and identification of specific substances or their metabolites in biological samples. These techniques rely on the unique properties of drugs, such as their chemical structure, stability, and interaction with various analytical methods. Common drug screening techniques include immunoassays, chromatography (e.g., gas chromatography or liquid chromatography), and mass spectrometry. Immunoassays utilize antibodies to specifically bind to target drugs, producing a measurable signal. Chromatography separates drug compounds based on their physical and chemical properties, while mass spectrometry identifies and quantifies drugs by analyzing their molecular weight and fragmentation patterns. The combination of these techniques provides reliable and accurate results for drug screening purposes, helping to detect and confirm the presence of drugs in various biological samples, such as urine, blood, saliva, or hair.

Read More:

http://thrivearticles.weebly.com/article/drug-screening-for-newborns-protecting-the-health-of-infants