205 Atomic Absorption Spectrophotometer
The 205 is Stable, Reliable, & Easy to use
The Buck 205 is our entry model AAS. To make the instrument more affordable we have removed the D2 Background correction, and three lamp turret. The 205 has a lamp warm up bracket and power supply on the back and a single lamp holder inside. The remainder of the instrument is identical to the 210VGP. Many customers with low dissolved solids in their samples use the 205 with great success. The 205 is very popular with educators, since it is designed to be low maintenance and affordable.
The 205 is shipped ready for use. All operating conditions are pre-loaded in the internal computer, including lamp settings, secondary wavelengths, and alternate methods of analysis for over 60 elements by flame and hydride techniques.
The Buck 205 is a high energy, microprocessor controlled single beam atomic absorption spectrophotometer. Solid state electronics and simple optics provide the basis for our superior stability and sensitivity. The Ebert mount monochromator and user-selectable bandwidth give the system maximum flexibility. Our short-path dynamic nebulizer/burner configuration is highly efficient. An inert needle, precisely positioned in a high flow venturi, delivers sample to the corrosion proof impact bead. This results in a tremendously high nebulization effect for all types of sample matrices.
|Wavelength Range:||190 to 900nm, Accuracy ± 0.2nm, Precision ± 0.1nm|
|Monochromator / Optics:||250mm Ebert mount, 600 lines/mm grating, 0.2-0.7-2.0nm bandpass|
|Hollow Cathode Lamp Supply:||Triple HCL power supply; 3 to 75 mA peak in NORMAL mode, 3 to 750mA in GIANT PULSE mode. The 205 has a three lamp design.|
|Background Correction:||Deuterium - In-Line (see-through) configuration, pulsed illumination, hot cathode, variable frequency, corrects from 190-350nm (0.7nm slit). Variable Giant Pulse - Self-reversing HCL currents up to 750 mA with pulse time from 10 to 200 microseconds, corrects from 190-900nm. The 205AAS Does not feature D2 Background correction|
|Burner / Nebulizer:||Polypropylene spray chamber with pre-mix burner and high efficiency adjustable nebulizers (SS), Titanium burner heads for Air/Acetylene, Argon/Hydrogen and Nitrous Oxide/Acetylene operation.|
|Microprocessor:||Computer control by 80C188 chip, 8/16 bit operation, 12/24 MHz clockspeed; non-volatile SRAM storage of >200 method files.|
|Integration / Response Range:||User selectable times from 0.5 to 10 seconds for continuous (flame) and transient (furnace, hydride) signals.|
|Calibration:||Automatic, weighted least squares fit to 1st, 2nd, 3rd, or 4th order functions, up to 8 points.|
|Display:||16-line backlit liquid crystal display for all text and graphics|
|Output Modes:||LCD display, IEEE-488 Parallel port for dot-matrix printer, RS-232 Serial port|
|Dimensions / Weight:||39"L x 11"W x 12"H; 50 lbs (81 lbs shipping weight)|
|Power Supply:||100-240 VAC operating range, 50/60 Hz AC, <150 watts|