An analytical technique used to measure the concentrations of elements in a sample. The system is incredibly sensitive and can detect down to micrograms (?g) . It is performed by focusing a beam of known wavelength of ultraviolet (UV) light through a flame and into a detector. - Eight lamp flame/graphite furnace integrated machine. Imported photomultiplier tube. The graphite tube damage, water flow air pressure and other alarmtemperature overheating protection.