Spectrophotometer

N375

Buck Scientific 205 (flame)

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.

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