Baldock, S. J. and Fielden, P. R. and Goddard, N. J. and Kretschmer, H. R. and Prest, J. E. and Brown, B. J. Treves (2008) A versatile sample injection system for miniaturised isotachophoresis devices. Microelectronic Engineering, 85 (5-6). pp. 1440-1442. ISSN 0167-9317
Full text not available from this repository.Abstract
A variable-volume sample injector design is presented and evaluated for performing sample introduction protocols for carrying out miniaturised isotachophoresis (ITP) separations. The microdevice design features a wide bore sample loop channel connected to a narrower bore separation channel via a short injection channel angled at 45°. An additional side arm channel located at the injection point enabled a range of injection strategies, using a gravity-fed system, to be implemented and assessed. A model analyte was used to demonstrate the versatility of the injector design for low and high sample loading regimes suitable for concentrated and dilute sample solutions, respectively.