M370 – dc-SDS

  • Reference electrode: Ag/AgCl mounted within sensor head
  • Counter electrode: Pt wire inside the capillary
  • Micro pump: Peristaltic Pump type, 4-channels
  • Head construction: PTFE head with silicon rubber tubing
  • Aperture: i.d 0.5 mm, 0.196 mm2
  • Resolution: <1 mm depending on solution/surface
  • Supported techniques: CV, CA, ECorr vs. T, LPR, Line scan, Area maps

  Positioning system specifications Stepper Motors

  • Scan range (x, y, z) mm: 70 mm x 70 mm x 70 mm.
  • Minimal step size on all axes: 1 µm
  • Closed loop positioning linear zero hysteresis encoder with direct real-time readout of displacement in x, y and z
  • Linear position encoder resolution: 100 nm.
  • Maximum scan speed: 2 mm/s.
  • Measurement resolution: 16 Bit @100kHz.
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    Ability to spatially resolve electrochemical activity.

    The Scanning Droplet System incorporates a technique which confines a liquid in contact with a sample surface in order to measure electrochemical and corrosion reactions over a limited region where the droplet is actually in contact with the sample. This offers the ability to spatially resolve electrochemical activity and to confine it exclusively to a quantifiable area of the sample. The scanning droplet system allows a spatially resolved, in-situ investigation by the standard electrochemical techniques such as line scans, area maps, potentiostatic pulse steps and open circuit measurements. The electrolyte flow through the cell is controlled via a precision peristaltic pump thus ensuring a good reproducibility of the free droplet wetted area.

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