IDA (Interdigitated Array) Electrode 3 m

More fine IDA (Pt/Au) Electrode has been developed. Its 3 m pitch working electrodes significantly increase redox cycle and allow researchers to perform ultra-sensitive measurement.

IDA Au (3 m)
IDA 3umIDA 3um
 

IDA Pt (3 m)

 

We recommend to apply Ag/AgCl ink to a reference electrode in order to stabilize potential of the electrode.

Micro Volume Sample Measurement with IDA Electrode 3 m and Cable kit

  • Insert IDA Electrode 3 m onto Cable kit
    This electrode can be used with Cable kit for IDA electrode (Catalog No.011066). IDA 3um
     
  • Put sample solution by dropping on the IDA electrode
     
  • Make the solution to cover comb-shaped working electrode, reference electrode and counter electrode
    IDA 3um
     
  • Researchers can comfortably measure by using a Dual electrochemical analyzer such as ALS800B series and 700C series.
     

Technical data concerning IDA Electrode 3 m

Fig. 1 -- Accuracy

A CV curve obtained by 3 m IDA Electrode Au [A] mirrored that of 3 m IDA Electrode Au [B], which means both of the IDA Electrodes were produced very accurately.

  • Left: 3 m IDA Electrode Au [A]; Right: 3 m IDA Electrode Au [B]
  • Sample: ferrocene methanol (1 mM/ 0.5 M NaCl solution)
  • Mode: Single
  • Sweep Rate: 30 mV/s

Fig. 2 -- CV by Dual mode

  • Mode: Dual
  • Sweep Rate at G-Electrodes: 10 mV/s
  • Applied Voltage to C-Electrodes: -0.2 V

Fig. 3 & 4 -- Comparison of 3 m IDA Au with 10 m by Dual Mode

For 3 m electrode, the limiting current of ferrocene methanol by CV Dual mode was 8 times as much as of the peak current by Single mode, while this ratio for 10 m electrode was about 4. This means large increase of the redox cycle.


Figure 3.
IDA Electrode: 3 m Au
Sweep Rate: 10 mV/s

Figure 4.
IDA Electrode: 10 m Au
Sweep Rate: 10 mV/s
*Larger area in 10 m IDA electrode gives the appearance as if its absolute current is larger than 3 m of IDA

Fig. 5 -- Capture Efficiency

Figure 5 shows a result of LSV Dual mode measurement. Its collection efficiency was proved to be 96.4% by our calculation from limiting current of Collector electrodes and Generator electrodes.

  • Method: LSV (Linear Sweep Voltammetry)
  • Mode: Dual
  • Sample: ferrocene methanol (1 mM/0.5 M NaCl solution)
  • Sweep Rate: 10 mV/s

Besides CV and LSV electrochemical techniques, our IDA electrode is available for various electrochemical measuring techniques such as chronoamperometry, normal pulse voltammetry, differential pulse voltammetry etc.
Researchers can obtain more insights by using IDA electrodes.


 

Catalog No. Description Width (m) Interval (m) Length (mm) Number of feet (pairs)
012129 IDA electrode (Au) 3 m 3 3 2 65
012130 IDA electrode (Pt) 3 m 3 3 2 65


new
New product line without passivation membrane

Catalog No. Description Width (m) Interval (m) Length (mm) Number of feet (pairs)
012260 IDA electrode (Au)
without passivation membrane
3 3 2 65
012263 IDA electrode (Pt)
without passivation membrane
3 3 2 65



 

New Product

new
New width in the product line, and you could have 2 m IDA with or without passivation membrane.

Catalog No. Description Width (m) Interval (m) 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)

IDA Electrode 5 m

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