Issue |
Analusis
Volume 27, Number 3, April 1999
Isotopic analysis
|
|
---|---|---|
Page(s) | 259 - 270 | |
Section | Original articles | |
DOI | https://doi.org/10.1051/analusis:1999116 |
DOI: 10.1051/analusis:1999116
Microwave assisted extraction of organic compounds
M. Letellier and H. BudzinskiLPTC, UPRESA 5472 CNRS, Université Bordeaux I, 351 cours de la libération, 33405 Talence, France
Abstract
Microwave energy has been developed recently for the extraction of organic compounds from environmental matrices after its use in inorganic chemistry for trace metal analysis. The development
in microwave techniques has occurred because of a need for a rapid, safe and cheap method. Conventional techniques for the extraction of solid matrices (such as Soxhlet) are time and solvent
consuming and the analysis of numerous samples in environmental studies is limited by the extraction step. This review recalls the importance of the extraction step in the analytical procedure for
the analysis of organic contaminants and the principles of extraction of solid matrices (sediment, soil, air particulate matter...). The theory of microwave heating is summarised and the microwave
ovens used in analytical chemistry are described. Then, the review attempts to summarise all the studies about microwave assisted extraction for organic contaminants, on one hand in multimode
microwave ovens in closed vessels and on the other hand in focused microwave ovens at atmospheric pressure. The microwave assisted extraction methods of volatile compounds are
summarised. Finally, advantages of methods compared to conventional extraction are discussed.
Key words: Microwave / extraction / organic contaminants.
© EDP Sciences, Wiley-VCH 1999