USNRDL-TR-67-129 8 September 1967 m CO ADSORPTION OF TRACE ELEMENTS FROM SEAWATER BY CHELEX 100 by H.A. Goya M.G.iai fSMHfrill r- \\\ DOC n nfpr: / DEC 231961 I D U.S. NAVAL RADIOLOGICAL DEFENSE LABORATORY SAN FRANCISCO CALIFORNIA 9413 5 CLEARING HOUSE ., , .nhl : • ii mati - : i Sprir,fjr'ioici -' - > /£ w
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USNRDL-TR-67-129 8 September 1967
m
CO
ADSORPTION OF TRACE ELEMENTS FROM SEAWATER BY CHELEX 100
by
H.A. Goya M.G.iai
fSMHfrill r- \\\
DOC n nfpr:
/ DEC 231961 I
D
U.S. NAVAL RADIOLOGICAL DEFENSE LABORATORY
SAN FRANCISCO CALIFORNIA 9413 5
CLEARING HOUSE ■.,■, .nhl : •■
ii mati - :i Sprir,fjr'ioici -' - >
/£ w
NUCLEAR APPLICATIONS BRANCH D. L. Love, Head
NUCLEAR TECHNOLOGY DIVISION R. Cole, Head
AKTNISTRATIVE INFORMATION
The work reported is part of d pro- ject sponsored by the Advanced Research Projects Agency under Order No. 961, Amend- ment 1, Prograr Code 7PU0.
DDC AVAILAP.» .ITT NOTICE
This document has been approved for public release and saJe; its distribution is .ualiaiifid.
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^sif ****A r^ LcrtSe*, Eugene P. Cooler Technical Director
DC. Cfcmpbell. CAPT USN Commanding Officer and Director .
ABSTRACT
Chelex 100 was evaluated as an ion-exchange resin for the extraction
of trace elcneits from seawater. A modification of the limited bath
technicne was used, in which resin was added to a solution containing
the trace element. After time for equilibration, the sol.tion was
analyzed and the fraction of the activity adsorbed by the resin was
determined.
Chelex 100 appears to be an excellent ion-exchanger for extracting
a number of trace elements from seawater. These Include: Nl, Zn, Ce,
6. G. E. Boyd, A. W. Adamson, L. S. Ifyera, "The Exchange Adsorption of
Ions Prom Aqueous Solutions by Organic Zeolites. II Kinetics,"
J. Am. Chem. Soc. 62:2836, 19^7.
7« M. G. Lai, H, A. Goya, "Concentration of Mixed Fission Products
Prom Seawater by Chelex 100," U. S. Naval Radiological Defense
Laboratory, USWRrSL-TR-67-128, 10 Sept. 1967.
10
UNCLASSIFIED Sfcnhiy Classtficalion
DOCUMENT CONTROL DATA R&D (Security t ImmUvmlion ol fitle. body ot «bttract mnd indexing nnnotntion must be mnfred when t!ie overmlt report /f *tsi*lltt& 'L.
i ORICINATINC AC Ti virv ^Ccporaro «urhcr;
U. S. Naval Radiological Dtfense Laboratory San Francisco, California 9^135
it. REPORT SFC- ^1 TV C L A tsl FIC * TION
mmsaieiED 26. CROUP
3 REPORT TITLE
ADSORPTION OF TRACE ELi^MENTS FROM SEAWATER BY CHELEX KX)
s AUTHORIS! (Tfrtf n«m«, middlt Inlllml, Immlnmmm)
Harry A. Goya Ming G. Lai
« REPORT DATE
U. CONTRACT OR GRANT NO.
b. PROJECT NO.
13 December 196?
ARPA, Order No. 961, Amendment 1, Program Code 7FU0.
7«. TOTAL NO. OF PAGES
-23-
lb. NO. OF REFS
ta. ORIGINATOR'S REPORT NUMBLRiSI
USNRDL-TR-67-I29
»fc. OTHER BLPORT HOW (A ihlm nporl)
l I'iuuiuwf» tnmi mmy 09 mmtignvd
tO. DISTRIBUTION STATEMENT
This document has been approved for public release and sale; its distribution is unlimited.
II. SUPPLEMENTARY NOTES ■ 2 SPDNSO..ING MILITARY ACTIVITY
Advanced Research Projects Agency Washington, D. C. 20301
13. ABSTRACT
Chelex 100 was evaluated as an ion-exchange resin for the extraction of trace elements from seawater, A modification of the limited bath technique was used, in which resin was added to a solution containing the trace element. After time for equilibration, the solution vas analyzed and the fraction of the activity adsorbed by th° resin was determined,
Chelex 100 appears to be an excellent ion-exchanger for extracting a number of trace elements from seawater. These include: Ni, Zn, Ce, La, Tm, Pb, Am, Tb, Mn, Bi, Pu, Cr, Th, Co, Cd, Fe, and Hg.