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Llopart-Babot I, Vasile M, Dobney A, Russell B, Kolmogorova S, Boden S, Bruggeman M, Leermakers M, Qiao J, De Souza V, Tarancón A, Bagán H, Warwick P. A comparison of different approaches for the analysis of 36Cl in graphite samples. Appl Radiat Isot 2023; 202:111046. [PMID: 37778141 DOI: 10.1016/j.apradiso.2023.111046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Abstract
This study compares different approaches for the quantification of the massic activity of 36Cl in graphite samples. All approaches consisted of a combustion step in combination with a trapping solution to collect the volatile elements. Two different resins were used to separate 36Cl from the matrix (CL resin and PS resin). Liquid scintillation counting (LSC), scintillation counting (SC) and tandem inductively coupled plasma mass spectrometry (ICP-MS/MS) were used to quantify 36Cl activity. The chemical yield in all approaches was determined by means of ion chromatography (IC). In addition, the methods were applied to a real activated graphite sample.
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Affiliation(s)
- I Llopart-Babot
- SCK CEN, Boeretang 200, 2400, Mol, Belgium; VUB, AMGC, Pleinlaan 2, 1050, Brussels, Belgium.
| | - M Vasile
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | - A Dobney
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | - B Russell
- Nuclear Metrology Group, National Physical Laboratory, Hampton Road, Teddington, TW11 OLW, UK
| | - S Kolmogorova
- Nuclear Metrology Group, National Physical Laboratory, Hampton Road, Teddington, TW11 OLW, UK
| | - S Boden
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | | | | | - J Qiao
- Department of Environmental and Resource Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - V De Souza
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | - A Tarancón
- Departament d'Enginyeria Química i Química Analítica, Universitat de Barcelona, Marti i Franqués, 1-1, 08028, Barcelona, Spain
| | - H Bagán
- Departament d'Enginyeria Química i Química Analítica, Universitat de Barcelona, Marti i Franqués, 1-1, 08028, Barcelona, Spain
| | - P Warwick
- University of Southampton, National Oceanography Centre, Southampton, European Way, Southampton, SO14 3ZH, UK
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Determination of environmental gaseous 129I trapped in charcoal cartridges by ICP-MS/MS. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08845-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Llopart-Babot I, Vasile M, Tarancón A, Bagán H, Dobney A, Boden S, Bruggeman M, Leermakers M, Qiao J, Warwick P. Investigation of a new approach for 36Cl determination in solid samples using plastic scintillators. Appl Radiat Isot 2023; 193:110646. [PMID: 36603458 DOI: 10.1016/j.apradiso.2022.110646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/01/2023]
Abstract
This work reports a new approach for the determination of 36Cl in radioactive waste samples from nuclear decommissioning, wherein novel plastic scintillator (PS) materials were used for the concentration of 36Cl prior to the detection with scintillation counting. Different plastic scintillator (PS) materials were tested for their selective absorption and detection of 36Cl activity in solid samples. PS microspheres (PSm), cross-linked PSm (CPSm) and PS resin have been investigated. PS resin was identified as the most suitable material for 36Cl analysis. Pyrolysis and subsequent trapping of the volatile elements in a bubbler was used. The trapping solution was finally loaded onto a cartridge of the PS resin. Scintillation counting and ion chromatography were used to determine the activity concentration and the chemical recovery, respectively.
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Affiliation(s)
- I Llopart-Babot
- SCK CEN, Boeretang 200, 2400, Mol, Belgium; VUB, AMGC, Pleinlaan 2, 1050, Brussels, Belgium.
| | - M Vasile
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | - A Tarancón
- Departament d'Enginyeria Química i Química Analítica, Universitat de Barcelona, Marti i Franqués, 1-11, 08028, Barcelona, Spain
| | - H Bagán
- Departament d'Enginyeria Química i Química Analítica, Universitat de Barcelona, Marti i Franqués, 1-11, 08028, Barcelona, Spain
| | - A Dobney
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | - S Boden
- SCK CEN, Boeretang 200, 2400, Mol, Belgium
| | | | | | - J Qiao
- Department of Environmental and Resource Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000, Roskilde, Denmark
| | - P Warwick
- University of Southampton, National Oceanography Centre, Southampton, European Way, Southampton, SO14 3ZH, UK
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Synthesis and Iodine Adsorption Properties of Organometallic Copolymers with Propeller-Shaped Fe(II) Clathrochelates Bridged by Different Diaryl Thioether and Their Oxidized Sulfone Derivatives. Polymers (Basel) 2022; 14:polym14224818. [PMID: 36432945 PMCID: PMC9697507 DOI: 10.3390/polym14224818] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/12/2022] Open
Abstract
Three organometallic copolymers, ICP1-3, containing iron(II) clathrochelate units with cyclohexyl lateral groups and interconnected by various thioether derivatives were synthesized. The reaction of the latter into their corresponding OICP1-3 sulfone derivatives was achieved quantitatively using mild oxidation reaction conditions. The target copolymers, ICP1-3 and OICP1-3, were characterized by various instrumental analysis techniques, and their iodine uptake studies disclosed excellent iodine properties, reaching a maximum of 360 wt.% (qe = 3600 mg g-1). The adsorption mechanisms of the copolymers were explored using pseudo-first-order and pseudo-second-order kinetic models. Furthermore, regeneration tests confirmed the efficiency of the target copolymers for their iodine adsorption even after several adsorption-desorption cycles.
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Investigating the 36Cl memory effect in pyrolysis of solid samples from nuclear decommissioning activities. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08492-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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