... As, Se, Sb, Bi, Pb, Sn, Te, Ge, In, Model GD320N Atomic Absorption SpectrophotometerCharacteristics A Build-in computer data processing ... cylinder pressure-reducing valve and water knockout gas filter.Optional accessories:GA3202 HGA graphite furnace system: Used to conduct trace ... are available.Software with I/O portPrinterOverall dimension & weight: Model GD320N Atomic Absorption Spectrophotometer