ET121 Microchip Platform with C4D Electrodes
- C4D detector for microfluidic chips
Use with glass or polymer microfluidic chips
The platform can be used as a capacitively-coupled contactless conductivity detector (C4D) for microchip electrophoresis and other experiments. C4D can be used for virtually all charged species: inorganic anions and cations, as well as organic ions, such as carboxylic acids, amines, amino acids, peptides, proteins, DNA fragments, antibiotics and many other pharmaceutical compounds.
An electrophoresis microfluidic chip can be positioned on top of the C4D platform, with the channel positioned so as to pass across the pair of electrodes which transmit and receive the AC signal. The C4D unit generates the excitation waveform, and provides signal filtering and offset. The platform must be connected to an ER815 or ER225 unit.
The platform comes with two ET195-2 Zeonor Chip for Microchip Electrophoresis included. The platform was tested using this microchip which has a channel with a 75µm x 75µm square cross section, a channel length of 87mm and a cover thickness of 100µm. Chips with a similar user-developed design can be used with this device but eDAQ cannot guarantee the results obtained.
A procedure using the ET121 in a microchip electrophoresis experiment can you seen here.
- Microchip Electrophoresis
- Contactless Conductivity
- Inorganic ions, organic molecules, pharmaceuticals and biomolecules
- Anions by MCE-C4D
- Procedure for Microchip Electrophoresis with C4D with the ET121
- Electro-osmotic Flow Measurement in a Microfluidic Chip
- Application of capacitively coupled contactless conductivity as an external detector for zone electrophoresis in poly(dimethylsiloxane) chips. Péter I. Koczka, Ede Bodoki, Attila Gáspár. Electrophoresis 2015. DOI:10.1002/elps.201500335
- ITP of lanthanides in microfluidic PMMA chip. Y Cong, D Bottenus, B Liu, SB Clark, CF Ivory. Electrophoresis, 2014. DOI: 10.1002/elps.201300382
- Electrophoretic separations in poly (dimethylsiloxane) microchips using mixtures of ionic, nonionic and zwitterionic surfactants. Q Guan, SD Noblitt, CS Henry. Electrophoresis, 2012. DOI: 10.1002/elps.201200255
- Microchip capillary electrophoresis: Improvements using detection geometry, on-line preconcentration and surface modification. Q Guan. PhD Thesis 2012
- The use of scanning contactless conductivity detection for the characterisation of stationary phases in micro-fluidic chips. Zarah Walsh, Mercedes Vázquez, Fernando Benito-Lopez, Brett Paull, Mirek Macka, Frantisek Svec, Dermot Diamond. Lab on a Chip, 2010 DOI: 10.1039/C003584J
- Electrode dimensions: 2mm x 1mm
- Electrode separation: 2mm
- Platform Dimensions: 50mm x 165mm x 30mm
- Platform Weight: 250gm
- Balanced bridge configuration.
- Excitation sinewave: 100 to 1200 kHz
- Excitation amplitude: 10 to 100 Vpp
Connector: 10 Pin Lemo (for the ER815) or 8 Pin DIN (for the ER225); request when purchasing
ET121_Microchip_Platform_with_C4D_Electrodes (240 KB PDF)