The Buck Scientific line of Atomic Absorption Spectrophotometers were designed to
utilize the maximum energy of the single beam optical system. This allowed us to build a smaller,
less expensive and more sensitive instrument. Background correction was achieved by inserting
the deuterium lamp directly after the hollow cathode lamp and using variable giant pulse.
Buck Scientific’s 200 series Atomic Absorption
Spectrophotometers are the culmination of more than 25 years of success and experience as a
manufacturer of spectroscopy instruments.
The 200 Series AA’s are powerful, compact and cost effective solutions to all atomic analyses. It has been designed to meet the
performance and flexibility our laboratory requires— now and in the future.
205/210/211 Atomic Absorption Spectrophotometer
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 two 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