An Electrochemical Detector (ECD) is a highly sensitive analytical instrument used in liquid chromatography systems, especially High-Performance Liquid Chromatography (HPLC) and Ion Chromatography (IC), for detecting electroactive species. It operates by measuring electrical current resulting from redox reactions of target analytes at the surface of an electrode. Designed for pharmaceutical, biomedical, environmental, and food safety laboratories, ECDs offer sub-nanomolar detection limits, making them ideal for analyzing neurotransmitters, vitamins, pesticides, phenols, sugars, and biomarkers.
Technical Specification of Electrochemical Detector
| Mode | DC ,PULSE and SCAN |
| Working Temperature | 10-40℃(indoor use only) |
| Safety and EMC | According to Ec-directives; Emission Group I Class A;cMETus approved |
| Sensors | Up to 3 flow cells |
| Max Current Compensation(Autozero） | – 25 nA-25 mA in DC and PULSE mode dependent on range setting |
| Oven | +7°C above ambient to 60°C, accuracy 0.5°C, stability 0.1°C; accommodates column and flow cell(s) |
| Offset | +50% to – 50% of max. output voltage, 5% steps |
| Analog Output (DAC) | -1 to +1 V full scale (via 16-bit D/A converter) |
| Analog Output (I/E) | -2.5 to +2.5 V full scale (unprocessed I/E con-verter signal) |
| DC mode | |
| Range | 10 pA-200 uA in 1. 2. 5 increments |
| Filter (ADF) | 10-0.001 Hz in 1.2. 5 increments
RAW and OFF: for unprocessed data |
| Potential ( EC) | -2.50V to +2.50V with 10 mV increments |
| Data Rate | 1- 100 Hz in 1, 2, 5 increments, dependent on filter setting |
| Noise | <2pA with dummy cell(load of 300 MΩ /470 pF) in 1 nA range, filter off, Ec+800mV and temperature of 35’C |
| PULSE Mode | |
| Range | 10 nA – 200 μA in 1, 2, 5 increments
OFF: for unprocessed data |
| Filter (ADF) | 0.5 – 0.001 Hz in 1, 2, 5 increments |
| Potential (Ec) | -2.50 V to + 2.50 V with 10 mV increments |
| Data Rate | 1/(pulse duration) Hz |
| SCAN Mode | |
| Range | 10 nA – 200 μA in 1, 2, 5 increments |
| Potential (Ec) | -2.50 V to + 2.50V with 10 mV increments |
| Data Rate | 1 Hz Scan rate 1 – 100 mV/s in 1, 2, 5 increments |
| Others | |
| Cycle | Half, Full, Continuous |
| Dimensions | 43(D)*22(W)*44(H)cm |
| Power requirements | 100-240 VAC, 50/60 Hz, 260 VA, auto-sensing |
| Weight | Max 14. 4 kg without flow cell and column |
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