Pharmaceutical Instruments

Antec Decade II


  • Accurate
  • Versatile
  • Sensitive
The DECADE II detector offers flexibility and stable working conditions for all applications using electrochemical (EC) detection. It has a highly stable Faraday-shielded oven compartment accommodating column and flow cell. Antec's flow cells and EC detectors have proven to be the best possible combination for extremely sensitive EC analyses.


The DECADE II SCC - QCC can control respectively 1 up to 4 flow cells. Multiple flow cells can be used in a parallel or serial configuration. An example of a serial configuration is the Azithromycin Analyzer, where USP requires two electrode potentials to be used. The Monoamines Analyzer is a nice example of a parallel configuration, one injection with a dual loop valve to analyze the same sample simultaneously under different LC/EC conditions.

The DECADE II covers a broad range of applications in the DC, pulse and scan mode. The DC mode covers about 90% of all applications. The pulse mode is important for PAD (Pulsed Amperometric Detection) of for example carbohydrates. The scan mode is used to obtain a voltammogram in method optimization.

The DECADE II demonstrates superiority in EC detection and sets a new standard in design and performance. For LC/EC applications, sensitivity is crucial. The DECADE II with a newly developed Advanced Digital Filtering (ADF), is breaking new records in detection limits.

Additional features are:

  • Advanced Digital Filter: for best detection limits
  • Data processing: by 24 bits A/D and 20 bits D/A converters
  • Timed events: 9 event files, each up to 50 command lines
  • Electrical injector: can be mounted externally (option)


The DECADE II SDC has the same performance as the DECADE II SCC - QCC. It has an integrated oven with Faraday cage, it is equipped with the superior ADF and has control for one flow cell (single cell control). The DECADE II SDC has DC mode only and is operated by PC control software (free). The DECADE II SDC is compatible with all Antec flow cells. An electrically actuated injector or a manual injector (standard or micro) are optional.


The DECADE II MD S/DCC is identical to  the DECADE II S/DCC except it has one additional feature: an activation mode for Magic Diamond (MD) electrodes. MD electrodes are thin layer diamond film electrodes that cannot be polished. Therefore the activation mode is required to regenerate or activate if necessary.

General specifications


110-240 VAC, 50/60 Hz, 260 VA, autosensing

Operating modes

DC, PAD and Scan (SDC had DC mode only)

Potential range

between ± 2.00 V in 10 mV increments
± 2.50 V in 10 mV increments (DECADE II MD only)


between ± 1 V or ± 10 V (20 bit D/A converter)


between ± 50% of max. output voltage, 5% steps

Event marker

pulse of 10% of max. output

Auto zero

triggered by keyboard, rear panel TTL input , or RS232C control


Full parametric instrument control, data acquisition at 1, 2, 5 and 10 Hz

Injector sensor

Starts system clock at injection


height 37 cm, from 7°C above ambient to 45°C, accuracy 0.5°C, stability 0.1°C; accommodates column and flow cell(s)


LCD screen, keyboard and noise (internal dummy cell)

Service mode

system settings & calibration parameters

Config mode

menu for system customisation and optimisation

Activation mode

between E1 and E2, programmable duration (DECADE II MD only)


upgradeable via PC (RS232)


operating temperature: 4 – 40 deg C, rel. humidity: 20 to 80% non-condensing

Second flow cell

Acquisition and control of 2nd .. 4th flow cell (option)


CE, UL/CSA, RoHS compliant

DC mode


10 pA – 200 µA in 1, 2, 5 steps

Filter (cut off)

0.5 – 0.01 Hz in 1, 2, 5 steps


better than 2 pA with a dummy cell (load of 300 MOhm and 0.5 µF) with filter off, Ec +800mV and temperature of 30 oC.


PULSE mode


10 nA – 200 µA in 1, 2, 5 steps

Filter (cut off)

0.5 – 0.01 Hz in 1, 2, 5 steps

Pulse times

t1: 100 - 2000 ms; t2: 0 - 2000 ms; t3: 0 - 2000 ms in 10 ms steps

Sample times

20, 40, 60, 80 and 100 ms

SCAN mode


10 nA - 200 mA in 1, 2, 5 steps

Scan rate

1 - 50 mV/s in 1, 2, 5 steps


half, full or continuous



DC mode (5 files) and pulse mode (4 files), end cycle time, number of cycles and oven temperature. Time-based control of 50 time points as to range, filter, output contacts (2 TTL, 2 relays), auto zero, offset, valve position (if present), and E-cell.

Rear panel

I/O connections

Mains, Output, 2 Connectors 15 pins (A, B), manual valve (C), RS232C connector

Physical specifications


44 (D) x 22 (W) x 44 (H) cm = 17.3” (D) x 8.7” (W) x 17.3” (H)


14 kg without flow cell and column







EC systems


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