Perkin Elmer AAnalyst 800 Model Atomic Absorption Spectrometer (AAS) has the following atomizers:

Flame (FAAS) (LOD = mg/L)
Graphite Furnace (GFAAS) (LOD = µg/L)
Cold Vapor (HGAAS) (LOD = µg/L)
In AAS food, biological samples, tissue, water, steel, geological samples such as soil are testes for trace elements with high accuracy and repeatability.
Using absorption and emission principles and appropriate atomizer Na, K, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Au, Zn, Cd, Hg, Al, Pb, As, Se, Sn and Sb can be determined.