title: A simple expression for the buffer index of a weak polyprotic acid.
abstract: A simple expression for the buffer index of a solution containing a weak polyprotic acid is derived and presented.
authors.affiliation: Institute of Chemistry, University of Uppsala, S-751 21 Uppsala, Sweden.
authors.forename: R
authors.initials: R
authors.lastname: Hesse
authors.forename: A
authors.initials: A
authors.lastname: Olin