Automated in-syringe dispersive liquid-liquid microextraction

作者：Maya Fernando; Horstkotte Burkhard; Estela Jose M; Cerda Victor^*

来源：TrAC-Trends in Analytical Chemistry, 2014, 59: 1-8.

DOI：10.1016/j.trac.2014.03.009

• Automated sample treatment
• Dispersive liquid-liquid microextraction (DLLME)
• Flow-injection technique
• Green analytical chemistry
• In-syringe DLLME
• Liquid-phase microextraction
• Magnetic stirring
• Miniaturization
• Multi-syringe flow-injection analysis
• Stirring-assisted extraction

The dispersive liquid-liquid microextraction (DLLME) technique is simple, efficient and environment friendly. One of the main limitations to its further development is the lack of approaches to its automation.
In this work, we describe and review recent applications of a novel approach to perform fully-automated in-syringe DLLME based on the use of computer-controlled bi-directional syringe pumps. The in-syringe-DLLME technique enables precise flow control over the extractant and the concomitant detection of the analytes "in-syringe", within a peripheral flow network, or by introduction into coupled detectors.

• 出版日期2014-8