Wiktionary
isoelectric
a. having equal electric potential, or the same number of positive and negative charges
Wikipedia
Usage examples of "isoelectric".
Procedures such as isoelectric focusing were foreign to me and produced results that could not be verified by the naked eye, much less by someone who knew little about biochemistry.
Although we lacked the equipment to do additional isoelectric focusing, we were able to replicate our earlier work from the original samples, which I had kept refrigerated over the past three years.