We have biologic sp240.
http://www.bio-logic.info/potentiostat-electrochemistry-ec-lab/instruments/
http://nuvant.com/products/potentiostat_galvanostat/?gclid=CPTEgPmwxL0CFfMQtAod6gIA5w
It depends on the circumstance of materials in experiment.
please let me know the object(goal) of your experiment.
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