EmStat4WE (ES3-4WE)

A polypotentiostat with 4 working electrodes, that makes parallel measuring of multiple electrodes in one electrochemical cell possible.

 

 

Product Description

With this polypotentiostat one electrochemical cell can be equipped with 1, 2, 3 or 4 working electrodes and all of these will be measured parallel. The EmStat3 4WE consists of a standard EmStat3 potentiostat and additionally three polypotentiostat (bipotentiostat-like) modules.
All techniques supported by EmStat3 are available for the EmStat3 4WE.
 

Available modes

The additional WE’s can each individually be used in two different modes:

  1. The potential of the additional WE has a constant dc-potential offset with respect to WE1, i.e. it is following the potential change of WE1.
  2. The potential of the additional WE has an independent fixed dc-potential.
 
Each potentiostat has eight current ranges: 1 nA to 10 mA with a resolution of 1 pA at the lowest current range and can automatically select the optimal current range.
 
4WE_onoverview
 
A cell can be setup with one reference and one counter electrode or one combined reference and counter electrode.
 

Techniques

The following techniques are supported by EmStat3 4WE.

Voltammetric techniques:

  • Linear sweep voltammetry (LSV)
  • Differential pulse voltammetry (DPV)
  • Square wave voltammetry (SWV)
  • Normal pulse voltammetry (NPV)
  • Cyclic voltammetry (CV)

These methods can all be used in their stripping modes which are applied for (ultra-) trace analysis.

Technique as a function of time:

  • Chronoamperometry (CA)
  • Pulsed amperometric detection (PAD)
  • Multiple pulse amperometry (MPAD)
  • Multistep amperometry (MA)

The additional WE’s can each individually be used in two different modes:
1. The potential of the additional WE has a constant dc-potential offset with respect to WE1
2. The potential of the additional WE has an independent fixed dc-potential