Scribner Associates Model 900/910 Multichannel Microelectrode Analyzer (MMA) is designed for use with microelectrode arrays with up to 100 electrodes. Applications include corrosion science, inhibitor and coating performance studies; current distribution and electrode interaction effects; chemical and biologic sensor arrays; as well as combinatorial electrochemistry and high-throughput materials evaluation such novel electro-catalyst discovery. Experiments include potentiostatic, voltage scanning (e.g., CV), step-stair, as well as electrochemical impedance spectroscopy. Controls are provided for the internal potentiostat to set the applied potential of the working electrodes as well as offset potential for groups of electrode segments. The instrument is arranged in 10 groups of 10 channels each. Each working electrode channel is connected to a ZRA for inter- and intra-electrode current measurement. Electrometer modules permit the use of reference or ion-selective electrodes (e.g., pH or Ag/AgCl for Cl– concentration) for local environment measurement and mapping. Additional controls are
available for temperature control. The instrument control software MMALive™ interface provides real-time display of current and/or potential for each electrode. Samples are updated every 40 ms, presented in the user-configurable display and logged to a simple text file that can be imported into common spreadsheet or graphing programs for offline analysis. A time-stamped snapshot of the entire electrode data can be recorded and movies can be recorded in the included data viewing software MMAView™.
- The Model 900 MMA is equipped for 100 channels of current measurement with sensitive zero resistance ammeters (ZRAs) and/or electrode potential measurement with high input-impedance electrometers.
- The Model 910 MMA Includes a Frequency Response Analyzer (FRA) for Electrochemical Impedance Spectroscopy (EIS) 1 mHz – 1- kHz.
- An on-board microprocessor-based data acquisition system with 16-bit resolution provides wide dynamic range and low-noise current and potential measurement.
- A built-in potentiostat provides polarization control of the electrode array with a common counter and reference electrode. Offset polarization of electrode segment groups is possible.
- Traditional DC electrochemistry such as Potential Scans, Square Waves, or Cyclic Voltammetry may be performed on either the entire array, or on subset of electrodes.
- Combination arrays of reference and working electrodes are possible by mixing the signal conditioning group electronics.
- Windows graphical interface provides for real-time display of current and/or potential for each electrode.
- Chemical & Biological Sensor Arrays
- Combinatorial Electrochemistry
- Battery Electrode & Electrocatalyst Materials Development
- Current Distribution Mapping
- Corrosion Science & Engineering
- Inhibitor & Coating Evaluation
| Specifications: | Details |
|---|---|
| Working Electrode Inputs: | 100 channels, interchangeable electronics in 10 groups of 10 |
| Current: | 1, 10 or 100 µA full scale |
| Resolution: | 33 pA, 330 pA or 3 nA |
| Voltage: | ±10 V input; Electrometer: 1E12 Ω || 3 pF |
| Resolution: | 305 µV |
| Auxiliary channels standard: | 4 extra electrometer inputs for analog signals |
| Internal potentiostat: | ± 10 V compliance, at 10 mA maximum |
| Applied potential range: | ± 5 V, resolution of 160 µV |
| Group offset potential range: | ± 5 V, resolution of 2.5 mV |
| Risetime: | 100 µs; controlled slew rate of 10 µs/V |
| Maximum Data Rate: | 20-100 frames/s (depending on electrode configuration) |
| Temperature control: | Thermocouple control channel for substrate conditioning |
| Working Electrode Interface: | Model 900A: five 68-pin connectors with mating ribbon cables |
- Download MMA Software Version 1.7h (March 5th, 2020).
Note: MMA Software can be used in Demonstration Mode if the MMA hardware is not available.
- + Features
-
- The Model 900 MMA is equipped for 100 channels of current measurement with sensitive zero resistance ammeters (ZRAs) and/or electrode potential measurement with high input-impedance electrometers.
- The Model 910 MMA Includes a Frequency Response Analyzer (FRA) for Electrochemical Impedance Spectroscopy (EIS) 1 mHz – 1- kHz.
- An on-board microprocessor-based data acquisition system with 16-bit resolution provides wide dynamic range and low-noise current and potential measurement.
- A built-in potentiostat provides polarization control of the electrode array with a common counter and reference electrode. Offset polarization of electrode segment groups is possible.
- Traditional DC electrochemistry such as Potential Scans, Square Waves, or Cyclic Voltammetry may be performed on either the entire array, or on subset of electrodes.
- Combination arrays of reference and working electrodes are possible by mixing the signal conditioning group electronics.
- Windows graphical interface provides for real-time display of current and/or potential for each electrode.
- + Typical Applications
-
- Chemical & Biological Sensor Arrays
- Combinatorial Electrochemistry
- Battery Electrode & Electrocatalyst Materials Development
- Current Distribution Mapping
- Corrosion Science & Engineering
- Inhibitor & Coating Evaluation
- + Specifications
-
Specifications: Details Working Electrode Inputs: 100 channels, interchangeable electronics in 10 groups of 10 Current: 1, 10 or 100 µA full scale Resolution: 33 pA, 330 pA or 3 nA Voltage: ±10 V input; Electrometer: 1E12 Ω || 3 pF Resolution: 305 µV Auxiliary channels standard: 4 extra electrometer inputs for analog signals Internal potentiostat: ± 10 V compliance, at 10 mA maximum Applied potential range: ± 5 V, resolution of 160 µV Group offset potential range: ± 5 V, resolution of 2.5 mV Risetime: 100 µs; controlled slew rate of 10 µs/V Maximum Data Rate: 20-100 frames/s (depending on electrode configuration) Temperature control: Thermocouple control channel for substrate conditioning Working Electrode Interface: Model 900A: five 68-pin connectors with mating ribbon cables - + Product Support Documents
- + Downloads
-
- Download MMA Software Version 1.7h (March 5th, 2020).
Note: MMA Software can be used in Demonstration Mode if the MMA hardware is not available.