The aims of this book are fourfold: (1) to introduce methods for the in-selective electrodes which have become commercially available in the last twelve years i.e. the residual chlorine electrode, the free hydrogen sulphide electrode, the solid-state mercurous chloride electrode, the barium-selective liquid membrane electrode, and the surfactant-selective liquid membrane electrode; (2) to provide fuller details of electrodes that had just appeared at the time of the first edition i.e. neutral carrier membrane electrodes for sodium, lithium and calcium; (3) to add new titrimetric and indirect...