Atomic absorption spectroscopy (AAS) is a spectro-analytical procedure for the quantitative measurement of chemical elements. AAS is based on the absorption of light by free metallic ions that have been atomized from a sample. An alternative technique is atomic emission spectroscopy (AES).

Atomic absorption spectroscopy (AAS or AA spectroscopy) is one of the earliest elemental analysis techniques to be commercially developed. So, what is atomic absorption spectroscopy? How does atomic absorption spectroscopy work?

Guystav Kirchoff and Robert Bunsen first used atomic absorption—along with atomic emission—in 1859 and 1860 as a means for identify atoms in flames and hot gases. Although atomic emission continued to develop as an analytical technique, progress in atomic absorption languished for almost a century.

Aug 28, 2022 · In human tissue samples, AAS can be used to determine the amount of various levels of metals and other electrolytes, within tissue samples. These tissue samples can be many things including but not limited to blood, bone marrow, urine, hair, and nails.

Jan 16, 2023 · Guystav Kirchoff and Robert Bunsen first used atomic absorption spectroscopy—along with atomic emission—in 1859 and 1860 as a means for identify atoms in flames and hot gases. Although atomic emission continued to develop as an analytical technique, progress in atomic absorption languished for almost a century.

Sep 9, 2022 · Atomic absorption spectroscopy (AAS) is an absorption spectroscopic method that uses the absorption of light by free atoms in a gaseous state to determine the quantitative composition of chemical components. It is used to determine the concentration of metals present in a sample to be analyzed.

Jun 5, 2023 · The Atomic Absorption Spectrophotometer (AAS) instrument facilitates the absorption of energy by its constituent atoms, which subsequently leads to the emission of radiation. A monochromator can be utilized to isolate a desired band of lines by transmitting a …

Atomic absorption spectrometry (AAS) detects elements in either liquid or solid samples through the application of characteristic wavelengths of electromagnetic radiation from a light source. Individual elements will absorb wavelengths differently, and these absorbances are measured against standards.

Jan 7, 2024 · In atomic absorption spectroscopy, the wavelength of absorbed light is determined by the type of atom (which element it is) and the amount of light is absorbed is determined as concentration of the element in the sample by the recorder and detector accordingly. Fig: Principle of Atomic Absorption Spectroscopy (AAS)

Aug 15, 2012 · Atomic absorption spectroscopy (AAS) is used for analysis of metals. Find its working principle, instrumentation, procedure and the applications.