System can independently control two flow cells, so by adding a second flow cell, pump and if required autoinjector, two systems can be run on the same detector and PC
Presearch says that high quality and high sensitivity have always been the strengths of its Antec electrochemical detectors (ECD). Now, it announces a complete system approach from Antec which incorporates the new Decade II detector technology into a software-controlled workstation which includes autoinjector, pump, data handling, degassing and pulse control.
The system is modular and can be configured to meet the needs of the ECD user and it can also be expanded.
The Alexys system can independently control two flow cells, so by adding a second flow cell, pump and if required autoinjector, two systems can be run on the same detector and PC.
This keeps costs down, saves on bench space and improves efficiency.
Alternatively, by adding a reactor cell the system can be used to run redox detection.
Working through the system from beginning to end, the autoinjector has a wide-ranging capability.
It can inject from many different vials and many different volumes.
It can be configured if necessary to inject several millilitres.
There is also a zero sample loss mode. Vacuum degassing of solvents is universally acknowledged as the most efficient and convenient way of removing gas from the mobile phase.
The two-channel degasser is ready to go for the first and second system if expansion is needed.
The pump has a wide flow rate range and can be used for capillary and microbore applications as well as standard analytical flow rates.
The ability to miniaturise the column is a key route to further improvements in sensitivity, and the low flow capability will allow the use of columns without flow splitting down to 0.5mm ID. There is a range of flow cells for different applications.
Thin layer cells with low cost disposable electrodes for applications where cell contamination may be an issue.
Wall jet cells for enhanced sensitivity and capillary LC cells, for maximum sensitivity.
There is also a variety of working electrode materials.
In addition to Antec's low noise flow cells and electronics, an advanced digital filter has been incorporated, which can give S:N improvements by a factor of two.
There are several modes of detection: DC, scan and pulse.
This allows the system to be used in the key areas of neurotransmitters, environmental labs and sugar analysis, as well as an electrochemical workstation if needed.
The Alexys software allows the control of all the system components through a Windows-based user interface.
It can also capture and process data from two channels asynchronously, allowing two cells to be run either together as a redox platform, or separately on two independent systems.
