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| Atomabsorptionsspektroskopi× | Jonkromatografi× | |
|---|---|---|
| Ämnesområde | Analytisk kemi | Analytisk kemi |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1955 | 1975 |
| Upphovsperson≠ | Alan Walsh | Hamish Small |
| Typ≠ | elemental analysis technique | separation and analysis technique |
| Ursprungskälla≠ | Walsh, A. (1955). The application of atomic absorption spectra to chemical analysis. Spectrochimica Acta, 7, 108–117. DOI ↗ | Small, H., Stevens, T. S., & Bauman, W. C. (1989). Novel ion exchange chromatographic method using conductometric detection. Analytical Chemistry, 47(11), 1801–1809. DOI ↗ |
| Alias≠ | AAS, flame AAS, graphite furnace AAS, GFAAS | IC, ion-exchange chromatography, IEC |
| Närliggande | 5 | 5 |
| Sammanfattning≠ | 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. | Ion chromatography is a liquid chromatography method that separates ions and polar molecules based on their relative affinity for the ion exchange resin in the column. Developed by Hamish Small in 1975, it combines ion-exchange separation with conductivity detection, enabling rapid, sensitive, and simultaneous determination of multiple ions in a single analysis. Ion chromatography has become an indispensable tool for monitoring environmental pollutants, analyzing food and pharmaceutical products, and studying complex ionic mixtures. |
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