|
 |
Fast Dual PotentiostatA
small business start-up company required a two channel potentiostat to
be designed for a new research project. The channels were completely
electrically isolated. The system needed to allow fast simultaneous CVs to be
performed. Scans are displayed in real time using the pc software |
Analogue PotentiostatAn academic customer required us to develop an analogue potentiostat where the output voltage signal had very low noise. The potentiostat needed to have two analogue signal inputs to control the output voltage and be battery operated. The potentiostat supplied was designed so that the two input signals could be summed and be applied to the electrodes via the potentiostat circuit. The customer could then apply an ac and a dc signal. There was also an internal output offset control that could be used to offset the potential by +/-700mV.The instrument had 4 gains, which were selectable via a switch. Other features of the instrument were a low battery indicator and charger switch. The cell could also be isolated via a switch to stop current flowing through the cell. The potentiostat developed was to replace an old analogue instrument and duplicate the experimental set up at a different European location. |
 |
 |
Portable PotentiostatA
customer requested a system to carry out voltammetry on disposable three
electrode sensors. The system had to be a handheld portable device with
initially a single channel that could be upgraded to a four-channel
device. Two current scales
were required, one with a
full scale display (fsd) of 25mA and the other with an fsd of 1ľA.
The device was required to be battery operated and used in the field with
pre-loaded standard methods. Once the
data was collected, peak heights were required to be calculated and stored
. All data required a date/time stamp and the customer wanted
the ability to store up to 20 complete scans.
Also required was a lab PC software package capable of uploading methods to the device, downloading data stored on
the device and displaying data and scans from the device. The
device delivered was a hand held microprocessor potentiostat
with a 20 character
by 4 line LCD and a membrane keypad.
The potentiostat
was controlled by menu driven operations and powered by
rechargeable batteries. It stored three pre-programmed methods and with a PC software
package new methods could be uploaded and data and scans could be
downloaded. The package
allowed display of the stored data and PC operation of the potentiostat
in the lab. The
customer benefited by being able to have trials of biosensors in the
field. It was easy and
quick to modify methods. A
comparison of field data results and lab results could be made using the
PC package.
|
Multi-channel PotentiostatThis system developed for a large academic partner, had eight multiple working electrode inputs with one counter and one reference input. Data from all eight channels could be collected simultaneously and displayed on a PC software package. Further versions were developed for other customers with 16 and 96 channels. |
 |
|
Whistonbrook
Technologies Limited Tel: 01582434252
|
