IDA (Interdigitated Array) Electrode - 2 µm
More fine IDA (Pt/Au) Electrode has been developed. Its 2 µm pitch working electrodes significantly increase redox cycle and allow
researchers to perform high-ultra-sensitive measurement.
Technical data concerning IDA Electrode 2 µm
A CV curve obtained by 2 µm IDA Electrode Au.
CV by Single mode
- Sample: 1 mM ferrocene methanol (0.5 M NaCl solution)
- Mode: Single
- Sweep Rate: 10 mV/s
CV by Dual mode
- Sample: 1 mM ferrocene methanol (0.5 M NaCl solution)
- Mode: Dual
- Sweep Rate at G-Electrodes: 10 mV/s
- Applied Voltage to C-Electrodes: -0.05 V
Its collection efficiency was proved to be 97% by our calculation from limiting current of Collector electrodes and Generator electrodes.
Capture Efficiency
Compared with IDA Au 10 µm and 3 µm, the capture efficiency of the 2 µm is higher, 93% for 10 µm and 95% for 3 µm.
For 2 µm electrode, the limiting current of ferrocene
methanol by CV Dual mode was 11 times as much as of the peak current by
Single mode, while this ratio for 10 µm and 3 µm electrode were about 4 and 7.5, respectively. This means large increase of the redox cycle.
New Product
New width in the product line, and you could have 2 µm IDA with or without passivation membrane.
| Catalog No. | Description | Width (µm) | Interval (µm) | Length (mm) | Number of feet (pairs) |
| 012257 | IDA electrode (Au) | 2 | 2 | 2 | 65 |
| 012258 | IDA electrode (Pt) | 2 | 2 | 2 | 65 |
| 012261 | IDA electrode (Au) without passivation membrane |
2 | 2 | 2 | 65 |
| 012264 | IDA electrode (Pt) without passivation membrane |
2 | 2 | 2 | 65 |
Accessories
| Catalog No. | Description |
| 011066 | Cable kit for IDA electrode |
| 011464 | Ag/AgCl Ink for reference electrode (2.0 mL) |
Related Product
IDA Electrode 10 µm
IDA Electrode 3 µm
Handling & Precaution
