Buck Scientific's 210VGP Atomic Absorption Spectrophotometer is the culmination of more than 25 years success and experience as a manufacturer of spectroscopy instruments. The 210 offers a three lamp turret and D2 Background correction with a small footprint and all operating conditions already preloaded.
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 Buck Analyst software package is easily done using the parallel and RS232C ports.
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.
The Buck 210VGP is a single beam AA which has proven itself worldwide as a workhorse. Our simple, single beam optical layout may buck convention, (no pun intended) but we know it works better. Let us explain.
Double beam instruments were originally designed to overcome poor hollow cathode lamp characteristics, noisy Power Supplies, drifting detectors & amplifiers, thermal expansion variations in optical components (mirrors, beamsplitters, mounts, etc.) 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 in to 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.
So, after fixing AA instruments for 20 years Buck set out to design a single beam AA just to see if it could be done. Well it worked, and since 1992 the 210VGP has been delivering superior results due to it's simple optical layout providing a high energy throughput.
Application notes and news
- Determination of the Environmental TCLP Metals in Waste-Waters, Solid Wastes, and Soils by Flame Atomic Abs...
- Determination of Trace Elements in Lead for Battery Applications using Atomic Absorption Analysis
- Determination of Major Electrolytes, Minor Minerals, and Trace Heavy Metals in Physiological Fluids by Flam...
- Determination of Major Components and Trace Contaminants in Assorted Plating Baths by Atomic Absorption Ana...
- Determination of Wear Metals and Additives (Soaps) in Lubricating Oils by Atomic Absorption
- Indirect Determination of Gold Purity by Measurement of Impurities with Flame Atomic Absorption Spectroscopy
- Analysis of Whole Blood for Trace Lead (Pb) by Graphite Furnace AAS
- Evaluation of Mineral Supplements for Content and Purity by Flame/Graphite Furnace AAS
- Determination of Trace Lead, Poly-Phenols and Tannins in Wines Using a Single Analytical Instrument
- Sample Preparation of Glass and Ceramic Materials for Atomic Absorption Analysis