Antec Decade II

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.

DECADE II SCC - QCC

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)

DECADE II SDC

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.

DECADE II MD

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

Power	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)
Output	between ± 1 V or ± 10 V (20 bit D/A converter)
Offset	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
RS232C	Full parametric instrument control, data acquisition at 1, 2, 5 and 10 Hz
Injector sensor	Starts system clock at injection
Oven	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)
Diagnostics	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)
Firmware	upgradeable via PC (RS232)
Environmental	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)
Regulatory	CE, UL/CSA, RoHS compliant

DC mode

Ranges	10 pA – 200 µA in 1, 2, 5 steps
Filter (cut off)	0.5 – 0.01 Hz in 1, 2, 5 steps
Noise	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

Range	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

Range	10 nA - 200 mA in 1, 2, 5 steps
Scan rate	1 - 50 mV/s in 1, 2, 5 steps
Cycle	half, full or continuous

Events

Events

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

Dimensions	44 (D) x 22 (W) x 44 (H) cm = 17.3” (D) x 8.7” (W) x 17.3” (H)
Weight	14 kg without flow cell and column