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211 Accusys Atomic Absorption Spectrophotometer

211 Accusys Atomic Absorption Spectrophotometer


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The Accusys 211 is the next evolution of the highly successful Buck 210VGP, incorporating all of the features of the 210VGP along with an automatic gas box for easy nitrous oxide switch-over. The 211 also has a hands-free ignition for added safety.

Standard Features

The 210/211 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, furnace, or hydride techniques. The three lamp turret has individual controls for alignment and standby mode to keep lamps warm. Direct report generation to a printer or data linking to the optional free Buck Analyst* software package is easily done using the parallel and RS-232 serial ports.

*Buck Analyst Software is free to download. Links are at the bottom of the page

Analytical Performance

The Buck 210/211 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.

Deuterium Background Correction

This is the oldest and still most commonly used technique, particularly for flame AAS. In this case, a separate source (a deuterium lamp) with broad emission is used to measure the background absorption over the entire width of the exit slit of the spectrometer. In the 210VGP & Accusys 211 the deuterium lamp is in-line with the hollow cathode lamp, thus eliminating the need for a double beam system. The benefits of a single beam system are more energy, smaller size, lower cost, and a more sensitivity.


  • Unique non-flame ignitor provides the safest instrument start-up
  • Simple 3 button operation for fully automatic gas controls, ignition and gas switchover (Air to Nitrous Oxide)
  • Automatic optimization of analytical parameters when method files are loaded from the 211 built-in Methods Library
  • Fully integrated safety interlocks for gas pressure sensors, burner head type, UV flame sensor, drain line trap and ignitor continuity insure safe operation of the 211 AAS
  • Upgradeable to the model 220GF back-mounted graphite furnace for ppb/ ppt trace level analyses
  • Available autosampler, hydride generator and cold vapor attachments
  • Internal microprocessor and software can identify samples, perform statistical analysis and graphically display calibration curves and transient peaks (Hydride generation & Graphite furnace)


Download AA Catalog (PDF)

 Download the Accusys 211 Users Manual


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. 
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



Atomic Absorption Application Notes

AA3001 Sample Preparation of Glass and Ceramic Materials for Atomic Absorption Analysis

AA3002 Determination of Trace Lead, Poly-Phenols and Tannins in Wines Using a Single Analytical Instrument

AA3003 Determination of Major Components and Trace Contaminants in Assorted Plating Baths by Atomic Absorption Analysis

AA3004 Analysis of Whole Blood for Trace Lead (Pb) by Graphite Furnace AAS

AA3005 Determination of Wear Metals and Additives (Soaps) in Lubricating Oils by Atomic Absorption

AA3006 Determination of Major Electrolytes, Minor Minerals, and Trace Heavy Metals in Physiological Fluids by Flame and Graphite Furnace Atomic Absorption Spectroscopy

AA3007 Determination of the Environmental TCLP Metals in Waste-Waters, Solid Wastes, and Soils by Flame Atomic Absorption Spectrophotometry

AA3008 Indirect Determination of Gold Purity by Measurement of Impurities with Flame AAS

AA3009 Analytical Methodology for the Characterization of Steels and Iron Alloys by Atomic Absorption Analysis

AA3011 Evaluation of Mineral Supplements for Content and Purity by Flame/Graphite Furnace AAS

AA3012 Determination of Trace Elements in Lead for Battery Application Using Atomic Absorption Analysis


EPA Atomic Absorption Methods

    EPA Method - 200_0 metals analysis by Atomic Absorption.pdf

    EPA Method - 200_13 - Trace element determination via Graphite furnace.pdf



    EPA Method - 202_2 - Aluminum - Atomic Absorption-Graphite Furnace.pdf

    EPA Method - 204_2 - Antimony AA - Furnace Technique.pdf

    EPA Method - 206_2 - Arsenic AA - Furnace Technique.pdf

    EPA Method - 208_2 - Barium AA - Furnace Technique.pdf

    EPA Method - 210_2 - Beryllium AA - Furnace Technique.pdf

    EPA Method - 213_2 - Cadmium AA Furnace Technique.pdf

    EPA Method - 219_2 - Cobalt AA - Furnace Technique.pdf

    EPA Method - 231_2 - Gold AA Furnace Technique.pdf

    EPA Method - 235_2 - Iridium AA Furnace Technique.pdf

    EPA Method - 236_2 - Iron AA Furnace Technique.pdf

    EPA Method - 239_2 - Lead AA Furnace Technique.pdf

    EPA Method - 243_2 - Manganese AA Furnace Technique.pdf

    EPA Method - 246_2 - Molybdenum AA Furnace Technique.pdf

    EPA Method - 249_2 - Nickel AA Furnace Technique.pdf

    EPA Method - 252_2 - Osmium AA Furnace Technique.pdf

    EPA Method - 253_2 - Palladium AA Furnace Technique.pdf

    EPA Method - 255_2 - Platinum AA, Furnace Technique.pdf

    EPA Method - 264_2 - Rhenium AA Furnace Technique.pdf

    EPA Method - 265_2 - Rhodium AA Furnace Technique.pdf

    EPA Method - 267_2 - Ruthenium AA Furnace Technique.pdf

    EPA Method - 270_2 - Selenium AA Furnace Technique.pdf

    EPA Method - 272_2 - Silver AA Furnace Technique.pdf

    EPA Method - 273_2 - Sodium Atomic Absorption Furnace Technique.pdf

    EPA Method - 279_2 - Thallium AA Furnace Technique.pdf

    EPA Method - 282_2 - Tin AA Furnace Technique.pdf

    EPA Method - 283_2 - Titanium AA Furnace Technique.pdf

    EPA Method - 286_2 - Vanadium AA Furnace Technique.pdf

    EPA Method - 289_2 - Zinc AA Furnace Technique.pdf

    Buck Analyst Software


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