Concept: Graphite furnace atomic absorption spectrometry (GF-AAS) in the analyticaltechnique vocabulary

Concept URI	http://dd.eionet.europa.eu/vocabulary/aq/analyticaltechnique/GF-AAS
Preferred label	Graphite furnace atomic absorption spectrometry (GF-AAS)
Definition	Graphite furnace atomic absorption spectrometry (GF-AAS) (also known as Electrothermal Atomic Absorption Spectrometry (ET-AAS)) is a type of spectrometry that uses a graphite-coated furnace to vaporize the sample. Briefly, the technique is based on the fact that free atoms will absorb light at frequencies or wavelengths characteristic of the element of interest (hence the name atomic absorption spectrometry). Within certain limits, the amount of light absorbed can be linearly correlated to the concentration of analyte present. Free atoms of most elements can be produced from samples by the application of high temperatures. Source: http://en.wikipedia.org/wiki/Graphite_furnace_atomic_absorption
Notation	GF-AAS
Status	Valid
Status Modified	2013-03-22
Accepted Date	2013-03-22
Not Accepted Date
Scope note	Analysis of Pb, As, Cd, Ni (Reference) & Hg