1) Optical System 2) Flame Atomization system 3) Transverse heated graphite furnace atomization system 4) Deuterium background corrector 5) Longitudinal background corrector 6) 8-lamp Holder with built-in power supplies 7) Hollow cathode lamp power supply 8) Electrodeless discharge lamp power supply 9) Graphite furnace autosampler 10)Closed-loop water cooling system