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Ion exchange of 90 Sr and 137 Cs into 1‐vinyl‐2‐pyrrolidone–divinylbenzene cation‐exchange resin
Author(s) -
Zamin Mohammad,
Shaheen Tahira,
Raza Zaidi Syed Arif
Publication year - 2005
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.776
Subject(s) - chemistry , divinylbenzene , ion exchange resin , ion exchange , cationic polymerization , volume (thermodynamics) , partition coefficient , ion , chromatography , phase (matter) , nuclear chemistry , radiochemistry , analytical chemistry (journal) , polymer chemistry , inorganic chemistry , styrene , organic chemistry , copolymer , polymer , physics , quantum mechanics
Radiotracer batch ion‐exchange experiments were employed to investigate the uptake of 90 Sr and 137 Cs radioisotopes by various cation‐exchanged forms of a 30% cross‐linked macroporous 1‐vinyl‐2‐pyrrolidone–divinylbenzene cation‐exchange resin with 1.37 ml g −1 pore volume, 0.0232 µm pore diameter and 271.2 m 2 g −1 surface area. The uptake of 90 Sr and 137 Cs was determined by taking liquid aliquots at various time intervals from solutions over solids. The volume‐to‐solid ratio was kept at 200. The results of kinetic experiments for the carrier‐free 90 Sr and 137 Cs were evident in all cationic forms of the resin. The percentage uptake and distribution coefficient K d values with carrier (0.005 M SrCl 2 and 0.01 M CsCl) concentrations were also determined, and the best results were obtained from the Li + and H + forms of the resin. Cerenkov counting (β − ‐counting) was used to observe the initial and final radioactivity in the liquid phase. All the experiments were carried out at room temperature and the radioactivity in each case was corrected for the background counts. Copyright © 2005 John Wiley & Sons, Ltd.