北極光科技

ac-SECM 交流電化學掃瞄系統 精選

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 SECM is one of the fastest growing of the scanning probe electrochemistry techniques. Its many application areas include the study of surface modification, monitoring of biological activity and imaging immobilized enzymes. The 3300 bi-potentiostat can make ultra-low current, low noise measurements simultaneously at the tip and substrate to extend the instruments ability to address specialist applications in surface science and the study of living cells.

The ac-SECM is a new technique that has the capability to measure surface phenomena without the presence of a mediator. This feature allows the SECM technique to be used in the field of corrosion science.

The SECM technique can be combined with the OSP470 module or the ic-SECM470 module to allow the technique to make both constant height and constant distance measurements.

 

Potentiostat

  • Compliance voltage: ±12 V
  • Applied potential: ±10 V FSR
  • Resolution: 32-bit (4.7 nV)
  • Measured potential: ±10 V FSR
  • Resolution: 24-bit (1.2 μV)
  • Current ranges: 10-decades 1 nA to 1 A
  • Maximum current: 500 mA
  • Current resolution: 23.8 fA
  • Accuracy: >0.5%
  • Floating capability Standard
  • Cell connections 2, 3 or 4
  • Maximum ADC sample rate: 4 MHz
  • Maximum ADC resolution: 24-bit
  • Minimum pulse duration: 100 μs
  • Scan rate: 1 μV/s to 200 V/s

Electrometer

  • Impedance: 10¹³ Ω II 7 pF typical
  • Bias current: 1 pA typical
  • Bandwidth 1 MHz

EIS Capability

  • Frequency range: 1 µHz to 1 MHz
  • Analyser accuracy: 0.1%, 0.1°
  • Frequency resolution 66 nHz
  • Mode Single sine, Multisine, FFT analysis
  • 掃描範圍:
  • 最大掃描速率:

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