Background correction using a self-reversal spectrum in atomic absorption spectrometry.

Design Considerations for High Performance Background Correction Systems in Atomic Absorption Spectrometry Product Specifications

Extraction and Determination of Heavy Metals Using Silver Coated Magnetic Nanoparticles and Flame Atomic Absorption Spectrometry

A rapid, simple and sensitive magnetic solid phase extraction (MSPE) method was developed for the pre-concentration and determination of copper and cadmium ions. In this study, modified Fe3O4@Ag nanoparticles were synthesized and then ligand 2-isonicotinoyl hydrazine carbodithiolate (ITHCDT) was bonded to silver due to the formation of covalent bond of S-Ag. In this method, copper and cadmium i...

Curve Correction in Atomic Absorption

Some of the causes of this curvature are controlled by the instrument design or by the experimental conditions used. The degree of curvature for nickel at the 232.0 nm wavelength, for instance, is controlled by the spectral bandwidth chosen on the monochromator, because the curvature arises from overlap of a nearby nonabsorbed line in the nickel spectrum. At practical instrument settings, it is...

1 Atomic Absorption Spectrometry ( AAS )

Atomic Absorption Spectrometry (AAS) is a technique for measuring quantities of chemical elements present in environmental samples by measuring the absorbed radiation by the chemical element of interest. This is done by reading the spectra produced when the sample is excited by radiation. The atoms absorb ultraviolet or visible light and make transitions to higher energy levels. Atomic absorpti...

Fraunhofer effect atomic absorption spectrometry.

The dark lines in the solar spectrum were discovered by Wollaston and cataloged by Fraunhofer in the early days of the 19th century. Some years later, Kirchhoff explained the appearance of the dark lines: the sun was acting as a continuum light source and metals in the ground state in its atmosphere were absorbing characteristic narrow regions of the spectrum. This discovery eventually spawned ...