The Buck 205 atomic absorption spectrophotometer is a rugged, economical and highly sensitive instrument which is perfect for industrial, educational and QC operation. Internal microprocessor and software perform statistical analysis and graphically display calibration curves. Dual lamp power, one for warm up. High throughput "stable beam" optical system. Digital readout for absorbance, emission, direct concentration, lamp currents and PMT voltage. Autozero, curve correction, integration and high gain damping features. Bandpass resolution from 0.2 -0.7-2.0nm. Burner safety interlock system for nitrous oxide/acetylene flame operation. Analog and digital output for chart recorders/PC data systems. Wavelength range: 190-900nm. Accuracy: +/-0.2nm. The 205 uses a unique burner system to get more sample to the flame, which results in more signal and better sensitivity. Uses an impact bead nebulizer to get an efficient generation of a fine aerosol of sample solution. The short path spray chamber permits difficult solutions containing organics or high dissolved solids to be aspirated with superb precision and minimal instabilities. To take advantage of this enhanced signal, Buck designed an optical layout that provides the highest throughput of any commercially available spectrophotometer. A very simple straight line optical path uses a monochromator with a single reflector mirror. This cuts down on the amount of light loss often associated with models having 10 or more mirrors. Because of this, the Buck 205 can detect far-UV elements, such as arsenic and selenium, with ten times greater sensitivity.

Several accessories are available at additional cost:

BS303-0106 Acetylene Pressure Regulator
BS303-0263 Air Pressure Regulator
BS303-0264 Argon Pressure Regulator
BS303-0204 Nitrous Oxide Pressure Regulator
210-0541 Nitrous Oxide Burner Head
BS303-0407 Hood and Vent Kit, Stainless Steel (110V)
BS303-0417 Hood and Vent Kit, Stainless Steel (220V)
BS303-0313 Oil-less Air Compressor (110V)
BS303-0314 Oil-less Air Compressor (220V)
BS303-0229 Air Filter
6103A Flash Arrestor
BS30040 Spare Parts Kit (includes nebulizer, impact bead, and other spares)
BS30055 Atomic Absorption Spectrometry by S.J. Haswell
BSP-1123 Dot Matrix Printer for direct report generation 115V
BSP-1124 Dot Matrix Printer for direct report generation 220V
1018 Combination Batch Hydride Generator for As/Se & Cold Vapor Hg
420 Continuous Flow Hydride Generator for As, Se and Hydride Metals (not Hg)