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Application of indirect methods in analysis by atomic-absorption spectrometry.
1Chemistry Department, Imperial College, London, S.W.7, U.K..
This review explores indirect methods for atomic-absorption spectrometry (AAS) to determine elements difficult for direct measurement. It classifies and discusses various procedures for metals, non-metals, and compounds.
Area of Science:
- Analytical Chemistry
- Spectroscopy
Background:
- Atomic-absorption spectrometry (AAS) is a widely used technique for elemental analysis.
- Certain elements are not easily determined with high sensitivity using direct AAS methods.
Purpose of the Study:
- To review and classify indirect methods for AAS analysis.
- To discuss specific procedures for determining challenging elements.
Main Methods:
- Classification of indirect AAS methods into five general procedural types.
- Discussion of reported procedures for various elements and compounds.
Main Results:
- Identification and categorization of available indirect AAS methodologies.
- Compilation of specific analytical protocols for metals, non-metals, and compounds.
Conclusions:
- Indirect methods offer viable alternatives for AAS determination of less sensitive elements.
- The reviewed classification and procedures provide a resource for analytical chemists.
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