Anal. Chem. 1981, 53, 1742-1746
1742
(3) Natusch, D.; Tomklns, B. Anal. Chem. 1978, 50, 1429. (4) Fujirnaki, M.; Kim, K.; Kurata, T. Agric. Biol. Chem. 1974, 38, 45. (5) Wheeler. 0. H. Chem. Rev. 1062, 62, 205.
RECEIVED for review March 23,1981. Accepted June 29,1981. Ames Laboratory is operated for the U S . Department of Energy by Iowa State University under Contract No. W-
7045-Eng-82. This research was supported by the Director for E~~~~~Research, Office of Basic Energy Science, WPAS-KC-01-03-01-2, This work is based on the Ph.D. thesis of S.G.C., Iowa State University, Ames, IA, 1980. The thesis contains extensive tabular results and gas chromatographs of various samples and fractions. Interested readers may obtain a copy from the Iowa State University Library.
Metal Ion Extraction with a Thiol Hydrophilic Resin AndrQ Deratani" and Bernard Sebllle Laborafolre de Physicochlmie des Blopolym&es, Universit6 Paris-Val de Marne, Avenue
The application of 30 % N,N'-methylenebis( acrylamide) cross-llnked poly[ N-( (acryioy1amino)methy1)mercaptoacetamide] resin for the concentration of metal ions from aqueous solutions has been investigated. A flow Injection analysis method using a color forming reagent was developed, allowing fast cation assays. The pH dependence of the metal extraction for Na, Ca, Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Ag( I), Cd(II), Hg( II), Pb(II), and U O;' was studied. Heavy metals and Cu(I1) exhlblt a hlgh afflnity toward the thiol functlons of the resln (half extraction pH 80% iodide ion and as
