title: Separation of strontium from large amounts of calcium, with application to radiostrontium analysis.
abstract: The elution first of calcium and then of strontium by complex formation with cyclohexanediaminetetra-acetic acid (CyDTA) after sorption on ion-exchange columns, is shown to require careful control of pH and the concentrations of CyDTA and NH(4)(+). A procedure is described for volumetric analysis of calcium and strontium, and for use of this separation procedure before determination of (90)Sr in sea-water. Careful choice of reagents and materials is shown to be necessary for use of such a method in determination of trace amounts of radiostrontium.
authors.affiliation: Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, U.S.A.
authors.forename: V E
authors.initials: VE
authors.lastname: Noshkin
authors.forename: N S
authors.initials: NS
authors.lastname: Mott