A versatile sample injection system for miniaturised isotachophoresis devices

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

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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.

Item Type:
Journal Article
Journal or Publication Title:
Microelectronic Engineering
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2508
Subjects:
?? isotachophoresiselectroseparationminiaturisationinjection methodsinstrumentationchip technologiesmicrofluidicsurfaces, coatings and filmsatomic and molecular physics, and opticselectronic, optical and magnetic materialselectrical and electronic engineerin ??
ID Code:
77396
Deposited By:
Deposited On:
23 Dec 2015 13:42
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 15:41