Corrosion Parameters by Electrochemical Noise Analysis (ECN)
Electrochemical Noise Analysis (ECN) measures the raw current and potential fluctuations of the system using a low noise reference electrode set up or zero resistance ammeter (ZRA). The data is interpreted via visual spikes or FFT transformation to obtain a power density spectrum. This yields important parameters for dedicated applications in corrosion research world. All Metrohm potentiostats can be used for a basic ECN study but our ECN module provides low potential resolutions down to 0.76 µV.
Application: Low conductivity electrolytes, pit initiation studies and crevice propagation
Application Note: Automated Sample Handling and Analysis with NOVA: High-Throughput Electrochemistry (Download)
Recommended Configuration: (PGSTAT 302N + ECN Module) – ECN Analyzer
![ecn1 ecn1](https://corrosion.metrohmusa.com/hubfs/ecn1.jpg)
![cpt2 cpt2](https://corrosion.metrohmusa.com/hubfs/cpt2.jpg)
Unique Software Features for ECN Analysis
![ecn3 ecn3](https://corrosion.metrohmusa.com/hubfs/ecn3.jpg)
- Protocol for power density plots
- Automated ECN spectrum analysis
- Built-in calculation of statistical indicators:
- Skewness and kurtosis for current
- Noise resistance
- Pitting index