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Investigation of the CL-resin® properties for a sulfur-free content molecule protocol.

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Title: Investigation of the CL-resin® properties for a sulfur-free content molecule protocol.
Authors: Gaston-Bellegarde, Amayès1,2 (AUTHOR) amayesgb@gmail.com, Habibi, Azza2 (AUTHOR), Fichet, Pascal3 (AUTHOR)
Source: Analytica Chimica Acta. Aug2026, Vol. 1410, pN.PAG-N.PAG. 1p.
Subjects: Inductively coupled plasma mass spectrometry, Ion exchange resins, Chemical purification, Nuclear facility decommissioning, Ultratrace analysis, Environmental monitoring, Analytical chemistry
Abstract: The accurate quantification of chlorine, and particularly of 36Cl, remains challenging due to severe spectral interferences and the incompatibility of conventional sulfur-based purification protocols with ICP-MS/MS analysis. In this study, we report on the development and validation of a short, sulfur-free purification protocol for chlorine using CL-resin®, specifically optimized for ultra-trace measurements by ICP-MS/MS. Water was demonstrated to be as effective as 1 M H 2 SO 4 as a preconditioning and percolating solvent, while offering clear advantages in terms of safety, simplicity, and chemical compatibility. Among the percolating solvents evaluated, water and 4 mM nitromethane provided comparable chlorine retention and recovery over a wide range of flow rates and percolated volumes; however, water was selected for routine use due to the hazardous nature of nitromethane. In contrast, 6 mM sodium carbonate showed a strong dependence on percolated volume, limiting its applicability to small sample volumes. For chlorine elution, cyanate was identified as a robust and efficient sulfur-free alternative to thiocyanate, enabling near-quantitative chlorine recovery (∼90%) under mild and reproducible conditions. The removal step dedicated to 14C elimination, required for liquid scintillation counting, was successfully suppressed, resulting in a shortened protocol fully compatible with ICP-MS/MS detection. The optimized method allows the percolation of up to 2 L of sample, significantly improving detection limits. Overall, this work provides a robust, scalable, and ICP-MS/MS-compatible purification strategy for chlorine and 36Cl, well suited for environmental monitoring, nuclear decommissioning, and ultra-trace analysis, where sulfur-free chemistry and high recovery yields are essential. [Display omitted] • Sulfur-free CL-Resin® protocol for 36Cl quantification by ICP-MS/MS. • Analytical method suitable for environmental and decommissioning samples. • Up to 2 L processed to improve detection limits for ultra-trace determination. [ABSTRACT FROM AUTHOR]
Copyright of Analytica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 194045739
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Investigation of the CL-resin® properties for a sulfur-free content molecule protocol.
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  Data: <searchLink fieldCode="AR" term="%22Gaston-Bellegarde%2C+Amayès%22">Gaston-Bellegarde, Amayès</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> amayesgb@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Habibi%2C+Azza%22">Habibi, Azza</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fichet%2C+Pascal%22">Fichet, Pascal</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Inductively+coupled+plasma+mass+spectrometry%22">Inductively coupled plasma mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Ion+exchange+resins%22">Ion exchange resins</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+purification%22">Chemical purification</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+facility+decommissioning%22">Nuclear facility decommissioning</searchLink><br /><searchLink fieldCode="DE" term="%22Ultratrace+analysis%22">Ultratrace analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+monitoring%22">Environmental monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+chemistry%22">Analytical chemistry</searchLink>
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  Label: Abstract
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  Data: The accurate quantification of chlorine, and particularly of 36Cl, remains challenging due to severe spectral interferences and the incompatibility of conventional sulfur-based purification protocols with ICP-MS/MS analysis. In this study, we report on the development and validation of a short, sulfur-free purification protocol for chlorine using CL-resin®, specifically optimized for ultra-trace measurements by ICP-MS/MS. Water was demonstrated to be as effective as 1 M H 2 SO 4 as a preconditioning and percolating solvent, while offering clear advantages in terms of safety, simplicity, and chemical compatibility. Among the percolating solvents evaluated, water and 4 mM nitromethane provided comparable chlorine retention and recovery over a wide range of flow rates and percolated volumes; however, water was selected for routine use due to the hazardous nature of nitromethane. In contrast, 6 mM sodium carbonate showed a strong dependence on percolated volume, limiting its applicability to small sample volumes. For chlorine elution, cyanate was identified as a robust and efficient sulfur-free alternative to thiocyanate, enabling near-quantitative chlorine recovery (∼90%) under mild and reproducible conditions. The removal step dedicated to 14C elimination, required for liquid scintillation counting, was successfully suppressed, resulting in a shortened protocol fully compatible with ICP-MS/MS detection. The optimized method allows the percolation of up to 2 L of sample, significantly improving detection limits. Overall, this work provides a robust, scalable, and ICP-MS/MS-compatible purification strategy for chlorine and 36Cl, well suited for environmental monitoring, nuclear decommissioning, and ultra-trace analysis, where sulfur-free chemistry and high recovery yields are essential. [Display omitted] • Sulfur-free CL-Resin® protocol for 36Cl quantification by ICP-MS/MS. • Analytical method suitable for environmental and decommissioning samples. • Up to 2 L processed to improve detection limits for ultra-trace determination. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Analytica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.aca.2026.345611
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Inductively coupled plasma mass spectrometry
        Type: general
      – SubjectFull: Ion exchange resins
        Type: general
      – SubjectFull: Chemical purification
        Type: general
      – SubjectFull: Nuclear facility decommissioning
        Type: general
      – SubjectFull: Ultratrace analysis
        Type: general
      – SubjectFull: Environmental monitoring
        Type: general
      – SubjectFull: Analytical chemistry
        Type: general
    Titles:
      – TitleFull: Investigation of the CL-resin® properties for a sulfur-free content molecule protocol.
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            NameFull: Gaston-Bellegarde, Amayès
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            NameFull: Habibi, Azza
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            NameFull: Fichet, Pascal
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            – D: 08
              M: 08
              Text: Aug2026
              Type: published
              Y: 2026
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