3. Conclusion
This dossier illustrates the value of speciation analyses, which help us to better understand the fate and toxicity of certain elements in the environment. It is currently possible to draw on a range of totally reliable analytical techniques. Couplings with ICP-MS or AFS detection provide quantitative and qualitative information, but are limited for compounds of unknown structure. Molecular spectrometry methods enable the identification of unknown compounds, but quantification of species is virtually impossible. While all these techniques require chemical extraction for solid samples, this is not the case for physical speciation methods such as XANES. These offer interesting potential for characterizing solid samples, but are difficult to access for routine analysis. This highlights the complementary nature of each type of method for speciation analysis.
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Conclusion
References
Standardization
International Organization for Standardization ISO
- Workplace air – Determination of hexavalent chromium in airborne particles – Method using ion chromatography and spectrophotometric detection with diphenyl carbazide - ISO 16740 - (2005)
French Standards Association AFNOR
- Waste and soil characterization – Determination of chromium(VI) in solid materials by alkaline digestion and ion chromatography...
Regulations
Directive 2000/53/EC of the European Parliament and of the Council of 18 September 2000 on end-of-life vehicles (OJ L. 269, 21/10/2000, p. 34-43).
Directive 2003/53/EC of the European Parliament and of the Council of June 18, 2003 amending for the 26th time Council Directive 76/769/EEC relating to restrictions on the marketing and use of certain dangerous substances and preparations (nonylphenol, nonylphenol...
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