N-(Hydroxymethyl)thioamide resin as stationary phase in ion-exchange chromatography for metal ion separation

Liu, C.Y.; Chen, M.J.; Chai, Tsongi

doi:10.1016/s0021-9673(01)87192-2

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…Sorption materials, widely used to solve the problems of radioanalytical chemistry [ 13 , 14 ], radiochemical technologies [ 15 , 16 ], and nuclear medicine [ 17 ], were studied in several works for the separation of Au and Hg. It was established that the K d of both elements in different media on cation- and anion-exchange sorbents was either very low or very high, which did not enable quantitatively separating them from each other [ 18 , 19 , 20 , 21 , 22 , 23 ]. Using commercial extraction chromatographic sorbents TEVA and LN (based on Aliquat 336 and HDEHP, respectively), it was possible to recover carrier-free Hg from macro-amounts of Au; however, 10–20% of Au remained on the column [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Photonuclear Alchemy: Obtaining Medical Isotopes of Gold from Mercury Irradiated on Electron Accelerators

et al. 2022

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In our work, the photonuclear production of 198,199Au isotopes for nuclear medicine purposes was studied, and a method for their recovery from irradiated mercury was developed. The yields of the corresponding nuclear reactions were determined, and a comparison of various methods of obtaining gold radioisotopes was provided. New sorbents based on benzo-15-crown-5, which selectively binds gold, were studied, and the optimal conditions for Au recovery with a high degree of purification from mercury were found. It was established that, for the fast and quantitative recovery of Au isotopes, it was necessary to add at least 0.1 mg of the carrier. As a result, the developed method can be regularly used to obtain 198,199Au for the research of radiopharmaceuticals based on them.

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Section: Introductionmentioning

confidence: 99%

Photonuclear Alchemy: Obtaining Medical Isotopes of Gold from Mercury Irradiated on Electron Accelerators

et al. 2022

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New Aspects Concerning Chelating Resins

Liu

1992

J Chinese Chemical Soc

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Object of the present paper is to provide an up‐to‐date overview the application of chelating resins, a functional polymer of a special kind. Attention has been in particular limited to the field of ligand exchange chromatography, sample handling and trace enrichment, metal‐ion buffers and polymer catalysts with enzyme‐like activities. The fundamental principles in the design and syntheses of chelating resins for usage in these respects are also described.

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Preparation and Properties of a New Chelating Resin Containing Sulfur and Nitrogen Donor Atoms

Chen

Liu

1999

J Chinese Chemical Soc

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A novel chelating resin was obtained by incorporating 2-mercaptoethylamine into polystyrene divinylbenzene copolymer. Conversion of functional groups of the resin was confirmed by IR spectra, elemental analysis, hydrogen capacity, and protonation constants. The functionality of the resin is 0.45 mmol g". The water regain as a function of pH was determined. The coordination behavior of the resin was investigated by JR, EPR and potentiometry, Effects of pH on adsorption of metal ions to the resin, both at large excess and limited amount of metal ions were examined. The resin exhibits exceptionally high affinity for soft metal ions, even in highly acidic aqueous media. EPR measurements at different copper loading were made. The results showed that the copper(II)-resin complex might be distorted tetragonal. Protonation constants and stability constants of the resin were determined at 25 ·C and ionic strength of 0.5 M KCI solution. The selectivity of the resin toward metal ions decreased in the order: Au(lII) > Pt(IV) > Ag(I) > Pd(I1) > Hg(II) > Fe(III) > Cu(II) > Zn(II) > Cd(II) > Ni(Il) == Co(II). Metal ion coordination occurs primarily at the nitro-

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N-(Hydroxymethyl)thioamide resin as stationary phase in ion-exchange chromatography for metal ion separation

Cited by 8 publications

References 9 publications

Photonuclear Alchemy: Obtaining Medical Isotopes of Gold from Mercury Irradiated on Electron Accelerators

Photonuclear Alchemy: Obtaining Medical Isotopes of Gold from Mercury Irradiated on Electron Accelerators

New Aspects Concerning Chelating Resins

Preparation and Properties of a New Chelating Resin Containing Sulfur and Nitrogen Donor Atoms

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