what is aas
Flame atomic absorption spectroscopy instrument. Atomic absorption spectroscopy (AAS) is a spectroanalytical procedure for the quantitative determination of chemical elements using the absorption of optical radiation (light) by free atoms in the gaseous state.
Anabolic-androgenic steroids (AAS) are synthetically produced variants of the naturally occurring male sex hormone testosterone. Anabolic refers to muscle-building, and androgenic refers to increased male sexual characteristics. Steroids refers to the class of drugs.