... Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, Bio-Spectrophotometer, UV Vis Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter ... Ba<1% (Nitrous Oxide Analysis) Cu<2%,Cd<2%(Graphite Furnace Analysis)Background Correction: Deuterium Lamp>× ... 0.1nm,02nm,0.4nm,1.0nm,2.0nm (5steps,Automatic Changeover)Wavelength Accuracy ±0 ...