High Sensitive Electrochemical Detector for Liquid Chromatography

single cell control, with DC, pulse and scan mode

With its measurement frequency up to 100 Hz, this electrochemical detector is specially designed for super-fast highly sensitive and selective measurement of oxidisable and reducible substances in (U)HPLC. The AZURA ECD 2.1 comprises of a thermostat-controlled Faraday’s cage, accommodating column and flow cell. The AZURA ECD 2.1 unites the three operating modes DC, Pulse and Scan in one instrument. The DC mode covers about 90% of all applications. The pulse mode is important for PAD (Pulsed Amperometric Detection) of e.g. carbohydrates. The scan mode is used to obtain a voltammogram in method optimization. A digital low-pass filter provides an excellent signal-to-noise ratio. For highest sensitivity, the SenCell flow cell is recommended. The correct flow cell can be chosen from a broad variety of flow cells after our advice.

The AZURA ECD 2.1 is controlled by software packages ClarityChrom®  and Chromeleon®

Modes

Measuring range10 pA-200 μA in steps of 1, 2 and 5
Filter (cut off)Advanced Digital Filter, 0.5 -0.001 Hz in steps of 1, 2 and 5
Pulse timest1: 100-2000 ms; t2: 0-2000 ms; t3: 0-2000 ms in steps of 10 ms
Data recording20, 40, 60, 80 and 100 ms
Measuring range10 pA-200 μA in steps of 1, 2 and 5
Filter (cut off)Advanced Digital Filter, 0.5 -0.001 Hz in steps of 1, 2 and 5
Noise< 2 pA with dummy cell
Measuring range10 pA-200 μA in steps of 1, 2 and 5
Scan speed1-50 mV/s in steps of 1, 2 and 5
Scan cyclehalf, complete, continuous

Specifications

Dimensions220 x 440 x 440 mm
Weight14,6 kg without column and flow cell
Detector typeElectrochemical detector
VersionDC, pulse, scan operating modes
Detection channels1
Working potential-2.0 V to +2.0 V
Maximum data rate10 Hz
Autozerotriggered via key, TTL, RS-232
Thermostattingoven included
Temperature rangefrom 7°C above ambient temperature to 45°C
ControlParametric control and data-acquisition via LAN port (USB service port)
High Sensitive Electrochemical Detector for Liquid Chromatography

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