Microextraction and Solventless Techniques
| Autor: | Hian Kee Lee, Seyed Mohammad Majedi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Sorbent
Chromatography Elution Chemistry 010401 analytical chemistry Extraction (chemistry) Sorption 02 engineering and technology 021001 nanoscience & nanotechnology Solid-phase microextraction 01 natural sciences 0104 chemical sciences Solvent Sample preparation Solid phase extraction 0210 nano-technology |
| Popis: | Miniaturized sample preparation techniques are increasingly being used for sample clean-up, elimination of interferences associated with the sample matrix, and enrichment of target analytes for sensitive detection by analytical instrumentation. Microextraction techniques in which target analytes are transferred to, and enriched on a very small amount of a sorbent, or in a low volume of liquid, utilize various device configurations, sorbent materials, and solvents to increase recovery, sensitivity, and selectivity toward target analytes. Sorption-based miniaturized techniques such as solid-phase microextraction, stir-bar sorptive extraction, and micro-solid-phase extraction (SPE), and also solvent-based approaches such as liquid-phase microextraction in its various modes have been demonstrated to be effective and green alternatives to conventional solvent-based extraction and SPE methods where moderately large amounts of solvents are consumed for the extraction, elution, and desorption of analytes prior to analysis. This chapter reviews the principles, advantages, limitations, and recent trends and applications of these techniques. |
| Databáze: | OpenAIRE |
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