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225ATS Educational Atomic Absorption Spectrometer

225ATS Educational Atomic Absorption Spectrometer


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Just say NO to service contracts!

At Buck Scientific we do not offer service contracts, because we believe in building the most reliable Atomic Absorption Spectrometers in the world is what customers really want. Why pay $4,000-$6,000 a year for maintenance just to be told after 7 years that your instrument can no longer be fixed?  Buck customers spend between $1,500-2,000 dollars every 3-4 years, and we are still servicing instruments from the 1980's! 


Since 1970 our goal here at Buck Scientific has been to make instruments that are easy to use, and maintain for many years.  We use top notch components to help our instruments withstand corrosive environments for decades,   We still support the first instruments we manufactured in the early 1980's. 

The 225ATS  is our new entry model Atomic absorption spectrometer. 


  • 10" color touchscreen
  • Easy to operate GUI (Graphical User Interface)
  • Automated wavelength setting
  • Automated slit selection
  • 4 USB ports for printer, mouse, and keyboard
  • Stable, Reliable, & Easy to use.
  • 3 lamp power supply, 1 internal 2 external
  • High energy optical design for better As & Se results
  • Ink Jet printer with spare black cartridge
  • Compact size and lightweight 39"Long x 12"Wide x 11"Deep; 50 lbs
  • Military grade design stands up to years of corrosive environment usage.
  • Low cost consumables and maintenance
  • Manufactured and supported in the USA
  • No service contract needed
  • Free In-House training for the life of the instrument
  • CE Approved
  • Includes: D2 Background correction 
  • Payment plans available for domestic (USA) customers.

We take a hands on approach to customer service by answering our own phones.  You can even talk to the engineer who assembled your instrument!   Call or email us today with your AA questions 800-562-5566.

230ATS Brochure

 Atomic absorption Pre-Installation Guide

 225ATS Manual

Replace your 200/205/210/211 AA spectrometer with the new 225/230/235ATS and
Get 10% off with your virtual trade in, just send us the Serial number for your AA to receive the special offer.  Contact Eric Anderson today for a quote

Our simple optical design gives our systems superior energy, and better results than double beam AA systems. Our unique design also allows our instruments to have a smaller footprint and a lower cost.

Buck Scientific 225ATS Atomic Absorption Spectrometer analysis screen

Atomic absorption spectrometer


Analytical Performance

The Buck 230ATS is a high energy, microprocessor controlled single beam atomic absorption spectrometer. 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.

Optical Layout

From the time of the initial developments of Atomic Absorption Spectrometry (AAS) 50+ years ago the concept of the single beam optical system was always a fundamental design consideration. It allowed high energy throughput for the best detection limits, smaller and fewer components for the best size, and low manufacturing costs for the best price. Unfortunately, those original single beam AAS instruments made over 50 years were not used routinely due to the inherent deficiencies in the components of the time: poor hollow cathode lamp characteristics, noisy power supplies, drifting detectors & amplifiers, thermal expansion variations in optical components (mirrors, beam splitters, mounts, etc.), and so forth. To compensate for these deficiencies, and to help them stay in business; the AAS manufacturers developed the double beam optical system that became the standard design for AAS instruments over the next 30 years.

Typical Atomic Absorption spectrometer Optical Diagram

Atomic absorption spectrometer beam path

By using a high light-loss optical component (the beam splitter) to divide the signal beam from the hollow cathode lamp, served to correct for these low performance components; thus halving the available energy to make a sample measurement, compensation between the reference and sample beams was maintained. In later years, the addition of a deuterium continuum lamp for background correction introduced a second beam splitter; thus cutting the hollow cathode lamp energy in half again. This does not even take into account the 6-10 additional Mirrors used to define the optical path for these large, heavy and expensive (albeit very stable) double beam AAS instruments.

The Buck Scientific line of Atomic Absorption Spectrometers 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.

A general rule of thumb for optical engineers is every time a mirror is introduced into a lightpath it deducts 10% of the energy. So in the case, less really is more!

With a 10" touchscreen computer on-board guiding you through your analysis, using an AA Spectrometer has never been easier! The All new Graphical User Interface utilizes five tabbed screens for; Analysis, controls, library, calibration, and samples. The 4 front facing USB ports make connecting a mouse and extracting data onto usb flash discs easy! Our Hideaway keyboard makes naming your samples easy and conveniently tucks in when not in use.

Buck Scientific 230ATS Atomic Absorption Spectrometer Calibration Screen

Atomic absorption spectrometer screen shot

Buck Scientific 230ATS Atomic Absorption Spectrometer Library Screen

Atomic absorption spectrometer screen shot



How to Set Up the 230ATS Atomic absorption spectrometer

Copper Calibration using the 230ATS Atomic absorption spectrometer


230ATS Atomic absorption spectrometer Brochure

 Atomic absorption spectrometer Pre-Installation Guide

 225ATS Atomic absorption spectrometer 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..
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.
Integration / Response Range: User select-able 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: 10 Color touchscreen with Lynux OS
Output Modes: 4 USB ports
Dimensions / Weight: 39"L x 11"W x 12"H; 50 lbs (100 lbs shipping weight)
Power Supply: 100-240 VAC operating range, 50/60 Hz AC, <150 watts

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