title: Location of end-points in high-precision coulometry.
abstract: A computer has been used to fit a cubic equation to experimental data obtained in the region of the end-point in high-precision coulometric titrations of 4-aminopyridine and tris(hydroxy-methyl) aminomethane. For these weak bases, the two end-points (points of inflexion calculated by setting the second derivative equal to zero) obtained by choosing first time, and secondly pH, as the independent variable, are in good agreement.
authors.affiliation: Department of Chemistry, Iowa State University, Ames, Iowa 50010, USA.
authors.forename: W F
authors.initials: WF
authors.lastname: Koch
authors.forename: D P
authors.initials: DP
authors.lastname: Poe
authors.forename: H
authors.initials: H
authors.lastname: Diehl