2002
DOI: 10.1039/b109247b
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Pressure pinched injection of nanolitre volumes in planar micro-analytical devices

Abstract: A new method for injecting and driving fluids by means of a multi-port injection valve and syringe pumps in a micro-channel network is described. A structure composed of two micro-channels arranged as a cross is connected with capillary tubes to an external multi-port injection valve. The fluid flows are driven by pressure and the multi-port valve controls the direction of the flow within the different sections of the structure. The first position of the multi-port valve allows the preparation of the loading o… Show more

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Cited by 46 publications
(31 citation statements)
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“…The microelectrodes are connected to a Metrohm conductivity meter (732 conductivity detector; Metrohm, Herisau, Switzerland) controlled by a PC through an interface (762 interface, Metrohm) [27]. A floating battery with 5 kV output and a locally made switching box are controlled by a PC through a Labview VI program (National Instruments, Austin, TX, USA).…”
Section: Ce On Microchipmentioning
confidence: 99%
“…The microelectrodes are connected to a Metrohm conductivity meter (732 conductivity detector; Metrohm, Herisau, Switzerland) controlled by a PC through an interface (762 interface, Metrohm) [27]. A floating battery with 5 kV output and a locally made switching box are controlled by a PC through a Labview VI program (National Instruments, Austin, TX, USA).…”
Section: Ce On Microchipmentioning
confidence: 99%
“…SCM system sends control pulses to the stepper motor then stepper motor drive the screw rod and transform rotation movement to linear motion therefore push the syringe piston for fluid injection. Syringe pump implement fluid transmission without pulse and precise control of fluid [7]. There are several common disadvantages of syringe pump such as quick wear of the injection unit and residual air is not easy to eliminate.…”
Section: A Syringe Pumpmentioning
confidence: 99%
“…Two of the main limitations of electrokinetic injection are its strong dependency on surface properties of channel walls and the bias effect towards different species [8,9]. To avoid biased injection, sample loading by pressure injection methods, which are insensitive to channel surface and sample properties, have been developed [10][11][12][13][14][15][16][17][18][19].…”
Section: Introductionmentioning
confidence: 99%