The electronic wallet system comprises a plurality of devices interconnected through a local network and capable of conducting electronic business transactions on an open network. The discovery phase of the method involves the administration of a toxicant to an animal which will cause damage to a specific organ of the animal, which damage results in the production of an oxidatively modified, organ specific protein. The ground electrode contains: a nickel in a range from 58% to 71% by weight, a chromium in a range from 21% to 25% by weight, an iron in a range from 7% to 20% by weight, and an aluminum in a range from 1% to 2% by weight.