Model 1000B Series Multi-Potentiostat

Overview

The model 1000B series is a computerized 8 channel potentiostat. The system contains a digital function generator, a multiplexed data acquisition circuitry, a multi-potentiostat can work with eight independent cells, or eight working electrodes in the same solution with a common reference electrode and a common counter electrode. The potential control range is ±10 V for the all channels. All channels can be set at independent potential, or the identical potential as the primary channel, so that they can sweep or step potentials together with the primary channel. Each electrode can be individually controlled, including on/off control, potential and sensitivity settings. The current range is ±10 mA. The instrument is capable of measuring current down to picoamperes.

The model 1000B series is an upgraded version from the model 1000/1000A series. The instrument allows eight independent cells, simultaneous or sequential measurements, fast waveform generation and data acquisition speed (1MHz @16-bit), and easy software update using FLASH memory.

Besides the commonly used cyclic voltammetry and amperometric i-t measurements, many other electrochemical techniques are available in the 1000B series. All eight channels can be used for various electrochemical techniques, except open circuit potential measurements. The parameters for all the channels should be set before running experiments. You can not alter the parameter setting during experiments. During run, you can alter display mode between single data set display and multi-set data display (either parallel or overlay plots). After a run, you can choose data sets of any channels as parallel plots or overlay plots.

The instrument is controlled by an external PC under the Windows 98/NT/Me/2000/XP/Vista/7 operating systems using USB (default) or serial port. The instruments are easy to install and use. No plug-in card or other hardware is required on the PC side. The commands, parameters, and options are in terminology that most chemists are familiar with. The toolbar allows quick access to the most commonly used commands. The systematic and complete help system provides context-sensitive help.

The instrument provides many powerful functions, such as file handling, experimental control, graphics, data analyses, and digital simulation. Some of the unique features include macro command, working electrode conditioning, color, legend and font selection, data interpolation, visual baseline correction, data point removal, visual data point modification, signal averaging, Fourier spectrum, and equations relating to electrochemical techniques. The maximum data length is 128K – 4096K points (selectable) if real-time data transfer is allowed. The software is 32-bit version and has a multi-document interface.

Specification

8-Channel potentiostat

(8 independent cells or a multi-working electrode cell)

Potential range (all channels):  ±10 V

Compliance voltage:  ±12 V

Current range (each channel):  10 mA

Reference electrode input impedance:  1x1012 ohm

Sensitivity scale:  1x10-9 - 0.001 A/V in 7 ranges

Input bias current:  < 50 pA

Current measurement resolution:  < 1 pA

Data acquisition: 16 bit @ 1M Hz maximum

CV and LSV scan rate:

  • 0.000001 to 5000 V/s (sequential scan)
  • 0.000001 to 25 V/s (8 channel simultaneous scan)

CC and CA pulse width:  0.0001 to 1000 s

CA and CC sample interval:

  • 1e-6 to 50s (sequential step)
  • 8e-5 to 50s (8 channel simultaneous step)
DPV and NPV pulse width:  0.001 to 10 s

SWV frequency:

  • 1 to 100K Hz (sequential scan)
  • 1 to 3125 Hz (8 channel simultaneous scan)

ACV frequency:

  • 1 to 10000 Hz (sequential scan)
  • 1 to 312 Hz (8 channel simultaneous scan)

SHACV frequency:

  • 1 to 5000 Hz (sequential scan)
  • 1 to 250 Hz (8 channel simultaneous scan)

i-t sample interval:

  • 1e-6s to 100s (sequential scan)
  • 8e-5s to 100s (8 channel simultaneous scan)

Current low-pass filters

Current analog output

Cell control: purge, stir, knock

Maximum data length:  128K-4096K selectable

Chassis dimension:  14.25”(W) x 9.25 ”(D) x 4.75”(H)
chi1000 screenshot
Overlay plot of 8 channel i-t Curve

Overlay plot of 8 channel i-t Curve with different potential setting for each channel

Overlay plot of 8 channel SWV

Overlay plot of 8 channel SWV with all eight channel potential scanned simultanousely



Model comparison

 

Functions 1000B 1010B 1020B 1030B 1040B

Cyclic Voltammetry (CV)

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Linear Sweep Voltammetry (LSV) &

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Chronoamperometry (CA)

 

 

 

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Chronocoulometry (CC)

 

 

 

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Differential Pulse Voltammetry (DPV) &

 

 

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Normal Pulse Voltammetry (NPV) &

 

 

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Square Wave Voltammetry (SWV) &

 

 

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AC Voltammetry (ACV)

        

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2nd Harmonic AC Voltammetry (SHACV)

        

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Amperometric i-t Curve (i-t)

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Differential Pulse Amperometry (DPA)

 

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Triple Pulse Amperometry (TPA)

 

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Sweep-Step Functions (SSF)

 

 

 

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Multi-Potential Steps (STEP)

 

 

 

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Open Circuit Potential - Time (OCPT)

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Full version of CV simulator

 

 

 

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Limited version of  CV simulator

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&: Corresponding stripping mode can be performed.

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