Atomic Fluorescence Spectrometers
Atomic fluorescence spectroscopy is a technique used in biochemical, medical and chemical applications that require very high sensitivity as well as precision and accuracy. An atomic fluorescence spectrometer is capable of measuring samples containing both hydride-forming elements (such as: Arsenic (As), Cadmium (Cd), Zinc (Zn), Bismuth (Bi), Selenium (Se), Tellurium (Te), Antimony (Sb), Tin (Sn), Germanium (Ge), and Lead (Pb)) as well as Mercury (Hg) at a parts per trillion (ppt) level using the unique vapour hydride generator. The high sensitivity and reliability of Aurora’s series of LUMINA 3300 Atomic Fluorescence Spectrometer is ideal for elemental analysis in a variety of research sectors.
The technique behind atomic fluorescence spectroscopy is similar to atomic absorption spectrometry in that a sample absorbs light at a particular wavelength to promote its electrons from its ground electronic state into an excited state. From this excited electronic state, the electron drops down to a lower electronic state into one of several vibrational levels, emitting a photon in the process, with one of several frequencies. By measuring the intensity of the emitted light at particular frequencies, it is possible to determine the concentration of the element being measured. The technique behind the instrument has a great impact on many applications, especially those concerned with analysis of metals in biological samples, agricultural samples, water, and industrial oils.
The vapour hydride generator in the LUMINA 3300 ensures a sensitive measurement on these hydride forming elements, of which mercury detection is the most common application. Mercury analysis is a critical component of several industries, including food and water safety, agriculture and environmental monitoring. Samples must be digested prior to analysis to ensure for accurate analyte measurement. This is preferably performed using a highly efficient acid-assisted microwave digestion system. The sample is then atomized (using either a quartz tube furnace with automatic ignition or Ar-H2 diffusion flame to reduce interference) and any free mercury atoms are excited by ultraviolet light emitted by the mercury hollow cathode lamp. Consequently, the excited atoms re-radiate the absorbed energy at particular frequencies which allows for quantification and analysis. This technique is sensitive and linear over a wide range of concentrations.
Hydride forming elements such as arsenic and lead may also be analyzed using Aurora’s LUMINA 3300 atomic fluorescence spectrometer. Providing enhanced sensitivities, reduced interferences, and extremely low detection limits for the determination of sub-trace levels of hydride-forming metals, Aurora's revolutionary all-in-one design allows for optimum performances for any application requiring either mercury detection or analysis of any hydride forming element. With unbeatable sensitivity and the best technique to detect and analyze hydride-forming elements, Aurora offers a solution that is more sensitive, cost-effective and reliable than traditional mass spectrometry techniques.
It is crucial, especially in fields such as food and water safety that the presence of even trace amounts of heavy metals be determined accurately and precisely. Aurora’s LUMINA Atomic Fluorescence Spectrometers are reliable for any application. Other examples of industry sectors and applications that rely heavily on AFS are public health and disease control, metallurgical and geological industries, petrochemical industries, pharmaceutical industries, clinical diagnostics, agriculture, and environmental monitoring. With an ever-increasing number of uses for atomic fluorescence spectrometry, Aurora is instrumental in the progression and development of these fields by providing a quality line of atomic fluorescence spectrometers that ensure reliable analyte measurements as well as reproducibility.
The LUMINA 3300 Atomic Fluorescence Spectrometer is ideal for elemental analysis in various research sectors, including; environmental, agricultural, geological, metallurgical, pharmaceutical, clinical and petrochemical. It is capable of acting as a mercury analyzer while also carrying out elemental analysis of all hydride-forming elements.
Atomic Fluorescence Applications
Features & Benefits
For more information, please review the LUMINA 3300 Atomic Fluorescence Spectrometer brochure or contact us directly to discuss your specific application. Thank you for considering AURORA to solve your lab automation requirements.
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