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| Atomabsorptionsspektroskopi× | UV-Vis-spektrofotometri× | |
|---|---|---|
| Fagområde | Analytisk kemi | Analytisk kemi |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1955 | 1852 |
| Ophavsperson≠ | Alan Walsh | August Beer |
| Type≠ | elemental analysis technique | absorption measurement technique |
| Oprindelig kilde≠ | Walsh, A. (1955). The application of atomic absorption spectra to chemical analysis. Spectrochimica Acta, 7, 108–117. DOI ↗ | Beer, A. (1852). Bestimmung der Absorption des rothen Lichts in farbigen Flussigkeiten. Annalen der Physik und Chemie, 86(5), 78–88. DOI ↗ |
| Aliasser≠ | AAS, flame AAS, graphite furnace AAS, GFAAS | UV-Vis spectroscopy, absorption spectroscopy, colorimetry |
| Relaterede | 5 | 5 |
| Resumé≠ | Atomic absorption spectroscopy is an analytical technique that measures the concentration of metal elements by detecting the absorption of light by ground-state metal atoms in the gaseous state. Invented by Alan Walsh in 1955, it rapidly became the standard method for trace metal analysis in environmental, clinical, agricultural, and industrial samples. Atomic absorption spectroscopy's sensitivity, selectivity, and simplicity make it indispensable for monitoring toxic metals, nutritional minerals, and elements in complex matrices. | UV-Vis spectrophotometry is an optical analytical technique that measures the absorption of ultraviolet and visible light (wavelengths 190–900 nm) by substances in solution. Founded on the Beer-Lambert law (developed by August Beer and Pierre Bouguer), it is one of the oldest and most widely used quantitative analytical methods. UV-Vis spectrophotometry is economical, rapid, and applicable to a vast range of organic and inorganic compounds, making it indispensable in pharmaceutical, clinical, environmental, and research laboratories. |
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