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MDS-8G & 205AA with Background Correction

MDS-8G & 205AA with Background Correction

$23,999.00 $24,999.00

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Educational 205+AA & MDS-6G Microwave Package

This package includes both the 205+ Atomic Absorption Spectrophotometer w/ Background Correction and the MDS-6G Microwave.

205+ Atomic Absorption Spectrophotometer

The Buck 205 is our entry model AAS. To make the instrument more affordable we have removed the three lamp turret. The 205 has a two lamp warm up brackets on the back, and a single lamp holder inside. The 205+ has D2 Background correction and a high energy optical design for superior sensitivity!

Standard Features

The 205 has All operating conditions 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.

Direct report generation to a printer or data linking to the free Buckanalyst software package is easily done using the parallel and RS-232 serial ports.

Analytical Performance

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.
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

MDS-8G Microwave Digestion System

The MDS-6G sets a new benchmark for practical compact microwave digestion system.  This little microwave digestion system is just as capable as the larger systems that cost twice as much.  The MDS-8g comes with our easy to use MP-100 Vessels, and a lifetime warranty against electrical or mechanical defect. As always with Buck Scientific, your satisfaction is guaranteed.

Please contact Eric Anderson for more information ~ 800-562-5566


  • Steel chamber with corrosion resistant PTFE coating
  • Easy to use Safety bolt design, which eliminates the need for safety membranes, and other costly consumables
  • High-strength composite fiber outer vessel safety sleeve for maximum strength
  • Precise pressure control by piezoelectric crystal to avoid cross-contamination
  • 8 MP-100 vessels
  • 8 position carousel
  • Free Buck Scientific support for life of the microwave


  • Size: 18"L x 20"W x 20"H, 88 lbs
  • Temperature: up to 300°C
  • Pressure: up to 1500 psi
  • Output Power: 1000W var.
  • Power requirement : 220V
  • No. of Vessel:  8


Microwave digestion applications:

Food and drug (milk and dairy products, health food), cosmetics, agricultural and sideline products, aquatic products, biological tissues, various types of feed, energy and petrochemical, geology and mineral resources, environmental resources (air, water, soil), metals, alloys, ceramics, RoHS, medicine, domestic wastes.


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