Metrohm Autolab
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| Brand | Metrohm Autolab |
|---|---|
| Origin | Netherlands |
| Manufacturer | Metrohm Autolab B.V. |
| Model | AUT-RDE |
| Rotation Speed Range | 0–10,000 rpm (1 rpm step size, acceleration: 4,000 rpm/s) |
| Speed Control | Manual or external potentiostat-triggered (e.g., Autolab, CHI, Biologic) |
| Speed Feedback | Integrated optical encoder with closed-loop control (±2 rpm accuracy at 10,000 rpm) |
| Contact Method | Dual-seal mercury pool (liquid Hg-based conduction, no carbon brushes required) |
| Sealing | Fully sealed rotating assembly immersed in electrolyte cell |
| Electrode Head Compatibility | Interchangeable RRDE and RDE heads |
| RRDE Head Options | Pt/Pt, Au/Pt, GC/Pt |
| Collection Efficiency | 24.9% (calibrated per ASTM D3765-18 practice) |
| Disk-Ring Gap | 375 µm |
| Max Current Rating | 500 mA |
| Footprint | Compact design optimized for glovebox integration (W × D × H: 185 × 160 × 320 mm) |
| Brand | Metrohm Autolab |
|---|---|
| Model | μAUTOLAB III |
| Max Output Current | ±250 mA |
| Max Output Voltage | ±100 V |
| Potential Range | ±10 V |
| Applied Potential Accuracy | ±2 mV ± 0.2% of set value |
| Applied Potential Resolution | 150 µV |
| Measured Potential Resolution | 30 µV (high-res mode) or 300 µV |
| Current Range | 10 nA to 100 mA (8 decades) |
| Current Accuracy | ±0.2% of reading ± 0.2% of range |
| Applied Current Resolution | 0.03% of range |
| Measured Current Resolution | 0.0003% of range (30 fA at 10 nA range) |
| Potentiostat Bandwidth | >400 kHz |
| Rise/Fall Time (1 V step, 10–90%) | <500 ns |
| Electrometer Input Impedance | >100 GΩ |
| Input Bias Current (@25°C) | <1 pA |
| Electrometer Bandwidth | >4 MHz |
| EIS Frequency Range | 10 µHz to 1 MHz |
| Sampling Rate | up to 750 kHz (with ADC750 module) |
| iR Compensation Range | 0–200 MΩ, resolution 0.025% |
| Electrode Configurations | 2-, 3-, or 4-electrode modes |
| Analog I/O | Dual-channel DAC/ADC for external control and synchronization |
| Brand | Metrohm Autolab |
|---|---|
| Origin | Netherlands |
| Manufacturer | Metrohm Autolab B.V. |
| Type | Single-Channel Potentiostat/Galvanostat |
| Max Current Output | ±100 mA |
| Current Range | 10 nA – 10 mA (7 decades) |
| Current Resolution | 30 fA (at 10 nA range) |
| Current Accuracy | ±0.2% of reading ± 0.2% of range |
| Potential Range | ±10 V |
| Applied Potential Accuracy | ±2 mV ± 0.2% of setting |
| Potential Resolution | 150 µV (applied), 3–300 µV (measured, selectable) |
| Potentiostat Bandwidth | 1 MHz |
| Rise/Fall Time (1 V step, 10–90%) | < 250 ns |
| Input Impedance | > 100 GΩ |
| Bias Current (25°C) | < 1 pA |
| Coulometric Integrator | Built-in, hardware-based |
| iR Compensation | Positive feedback and current-interrupt modes |
| Electrode Configuration | 2-, 3-, or 4-electrode |
| Analog I/O | 16-bit DAC/ADC, programmable voltage/current control and monitoring |
| Software | NOVA 2.1+ (Windows only) |
| Compliance | CE, RoHS, ISO 9001 certified design |
| Data Integrity | Audit-trail enabled in NOVA for GLP/GMP environments |