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ECD-200 Electrochemical Detector
High sensitivity and selectivity for
automated, analytical HPLC
User friendly
The ECD-200 Electrochemical Detector provides high sensitivity for automated, analytical chromatography of electroactive compounds. With 0.05 to 200 nA/V detection range, this amperometric detector offers both high sensitivity and high selectivity.
The ECD-200 Electrochemical Detector is designed for repetitive applications and increased ease of use. Two methods can be stored.
The digital display shows all important parameters for efficient interpretation:
- volt or nA/V output data
- volt or nA/V offset
- potential
- time constraint
- base line decay
- sensitivity
- chromatogram
Additional features of the ECD-200 include:
- Optimized flow path and low dead volume of the thin layer type electrochemical cell.
- An autozero function and easy-to-use software for automated, unattended operation.
- LCD screen that displays the real-time chromatogram and operating parameters.
- Control by computer or through RS-232 interface when integrated into a complete HPLC system.
Sensitive and selective
The ECD-200 provides sensitive, selective detection. The electronic transfer between electrode and compound in solution occurs only if the working potential is held at the right value to oxidize or reduce the compound; the detector is blind when the compounds react above this value.Innovative electronics and specially designed cell
With a low dead volume, the cell maintains efficiency of the separation. The mirror polish of all cell parts eliminates hydrodynamic disturbances.
| Working Electrode | Glassy carbon, flat circular, inserted in lower PCTFE half-block of the flow cell |
| Auxiliary Electrode | Upper stainless steel half-block |
| Reference Electrode | Ag/AgCl/Cl-polypropylene, screwed into auxiliary electrode |
| Spacer Seal | PTFE, 0.1 mm thickness |
| Cell Volume | 2 µl from cell inlet to working electrode |
| Dummy Cell | Built-in, simulates electrochemical cell to test baseline noise and drift |
| Display | LCD screen for real-time display of control parameters and chromatogram |
| Software | Keypad entry of parameters (10 soft keys) |
| Working Potential | -2.55 V to +2.55 V, 10 mV increments |
| Offset Potential | -10 V to +10 V, 10 mV increments |
| Sensitivity Range | 0.05 to 200 nA/V (12 steps) |
| Time Constant | 0.5, 2, and 5 sec. |
| Manual Control | Autozero and event marker |
| Protocol Storage | Two sets of parameters can be stored |
| Noise | Less than 3 percent short term, peak-to-peak (following ASTM standards) |
| Drift | Less than 3 % per hour at stable temperatures |
| Remote Control | 9-pin RS-232 connector |
| Electrical Power | 110-220 V, 50-60 Hz |
| Manufacturing Standards Safety: EMC: |
conforms to IEC 1010-1, UL
1262 and CSA 22.2-151 conforms to EN 50081-1 for emission and EN 50082-1 for immunity |
| Dimensions (W x D x H) | 34 x 31 x 14 cm; 13.4 x 12.2 x 5.5 inches |
| Weight | 4 kg; 8.8 lbs. |
The operational kit includes a complete cell 2 reference electrodes, fittings, gaskets. Different working electrodes are available.
Ordering information:
| Part Number | Description |
| PI-105 | ECD-200 electrochemical detector |