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Concept: Cold vapour atomic fluorescence spectrometry in the measurementmethod vocabulary

Concept URI http://dd.eionet.europa.eu/vocabulary/aq/measurementmethod/CV-AFS
Preferred label Cold vapour atomic fluorescence spectrometry
Definition Cold vapour atomic fluorescence spectroscopy is a subset of the analytical technique known as atomic fluorescence spectroscopy (AFS). Used in the measurement of trace amounts of volatile heavy metals such as mercury, cold vapour AFS makes use of the unique characteristic of mercury that allows vapour measurement at room temperature. Free mercury atoms in a carrier gas are excited by a collimated ultraviolet light source at a wavelength of 253.7 nanometres. The excited atoms re-radiate their absorbed energy (fluoresce) at this same wavelength.
Notation CV-AFS
Status Valid
Status Modified 22.03.2013
Accepted Date 22.03.2013
Not Accepted Date
Editorial note