Accession Number : AD0776124

Title :   Trace Element Equilibrium Studies.

Descriptive Note : Technical rept.,


Personal Author(s) : Gassaway,John D.

Report Date : DEC 1973

Pagination or Media Count : 15

Abstract : The equilibrium distribution coefficients of trace elements in seawater on ion-exchange resins were investigated. These resins contained various organic complexing and precipitating agents known to react with the elements under study. The resins used were either commercially prepared or synthetic modifications of commercial resins. A comparison of this work with that of Riley and Taylor (1968) and Goya and Lai (1967) shows that the zinc (II) and cobalt (II) content of seawater can readily be determined using Chelex 100, whereas the mercury (II) and chromium (III) content cannot. The great variation of results of various workers on mercury retention by Chelex 100 is most likely due to complex mercuric chemistry. The toluenesulfonamide form of Dowex 1 which retained 92 percent of the 51Cr (III) appears to be more suitable for concentrating chromium from seawater.

Descriptors :   *Trace elements, *Sea water, *Ion exchange resins, Cobalt, Zinc, Mercury, Chromium, Isotopes, Tracer studies

Subject Categories : Physical Chemistry
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE