A formula for correlating pKa values determined in D2O and H2O.

Complexes of lanthanide (III) ions with nitrogen donor ligands

Coordination abilities of the 1-16 and 1-28 fragments of β-amyloid peptide towards copper(II) ions: a combined potentiometric and spectroscopic study

Results are presented for the purity of three commercial brands of the Ca chelator EGTA [ethyleneglycol-bis(beta-aminoethylether)-N,N'-tetraacetic acid] as determined with pH-metric and oxalate precipitation methods and other techniques. The effect that the observed degree of hydration (2-4%) has on calculated values for [Ca2+] in Ca-EGTA solutions is described with reference to a theoretical dose-response relationship. In addition to the corrections for purity, the adjustments necessary to allow for ionic strength and the correction of pH readings to yield true [H+] activity or concentration values are described. These several corrections result in both a shift and a shape change for the dose-response curve compared with the curve calculated without these corrective procedures. Some authors have already taken some of these aspects into account, but this has not generally been made clear in the literature heretofore. The points raised may help to account for the wide variation of reported [Ca2+] ranges for Ca-sensitive cellular processes.

EGTA purity and the buffering of calcium ions in physiological solutions

Coordination of heavy metals by dithiothreitol, a commonly used thiol group protectant

A study of some problems in determining the stoicheiometric proton dissociation constants of complexes by potentiometric titrations using a glass electrode

The determination of small amounts of long-chain tertiary alkylamines and quarternary ammonium salts.

The synergic extraction of the europium(iii)-bis-phenanthroline-tris-salicylate complex and the preparation and properties of analogous ternary rare earth complexes

The extraction of copper(I), lead(II) and tin(IV) from hydrochloric acid by solutions of tetra-n-hexylammonium chloride in ethylene dichloride

The determination of microgram quantities of mercury(II) and silver(I) by thermometric titration

H.M.N.H. Irving

Papers

A study of some problems in determining the stoicheiometric proton dissociation constants of complexes by potentiometric titrations using a glass electrode

The determination of small amounts of long-chain tertiary alkylamines and quarternary ammonium salts.

The synergic extraction of the europium(iii)-bis-phenanthroline-tris-salicylate complex and the preparation and properties of analogous ternary rare earth complexes

The extraction of copper(I), lead(II) and tin(IV) from hydrochloric acid by solutions of tetra-n-hexylammonium chloride in ethylene dichloride

The determination of microgram quantities of mercury(II) and silver(I) by thermometric titration