Hélène ISNARD

Publications

Article dans une revue (40)

Acid Resistant and Highly Silver Selective Membranes Based on Charged Nanoporous 2D‐Materials Sarah Chevrier,Thibault Rosier,Bo Han,Lina Cherni,Fabien Olivieret al. Small, In press, ⟨10.1002/smll.202512412⟩ Article dans une revue cea-05496192v1
Production of radioactive traceable reference materials for measuring radioactive pollutants in the environment Lucille Chambon,S. Gupta,H. Isnard,Sylvie Pierre,Benoit Sabotet al. Applied Radiation and Isotopes, 2025, 226, pp.112204. ⟨10.1016/j.apradiso.2025.112204⟩ Article dans une revue cea-05325111v1
Certification of a new plutonium metal reference material: the CETAMA MP4 standard Sébastien Picart,Marielle Crozet,Giacomo Canciani,Ygor Davrain,Caroline Bertorelloet al. Journal of Radioanalytical and Nuclear Chemistry, 2025, 334 (5), pp.3639-3660. ⟨10.1007/s10967-025-10093-3⟩ Article dans une revue cea-05114690v1
Immobilization of controlled Pu:Am ratio on actinide-specific affinity monolith support developed in capillary and coupled to inductively coupled plasma mass spectrometry Sandra Barhoum,Marta Garcia Cortes,Marine Boudias,Mohamed Guerrouache,Hélène Isnardet al. Microchimica Acta, 2024, 191, pp.191. ⟨10.1007/s00604-024-06274-8⟩ Article dans une revue cea-04523983v1
Maximized Lanthanide Extraction Using Supercritical CO2 and Fluorinated Organophosphate Extractants Yuemin Deng,Dong Xia,Damien Bourgeois,Daniel Meyer,Stéphane Campidelliet al. ACS Sustainable Resource Management, 2024, 1 (8), pp.1780-1790. ⟨10.1021/acssusresmgt.4c00122⟩ Article dans une revue cea-04681827v1
Innovative ICP-MS/MS Method To Determine the $^{135}$Cs/$^{137}$Cs Ratio in Low Activity Environmental Samples Anaelle Magre,Beatrice Boulet,Hélène Isnard,Sebastien Mialle,Olivier Evrardet al. Analytical Chemistry, 2023, 95 (17), pp.6923-6930. ⟨10.1021/acs.analchem.3c00207⟩ Article dans une revue cea-04074490v1
Determining the selectivity of a tetra-phosphorylated biomimetic peptide towards uranium in the presence of competing cations through the simultaneous coupling of HILIC to ESI-MS and ICP-MS Lana Abou Zeid,Albert Pell,Marta Garcia Cortes,Hélène Isnard,Pascale Delangleet al. Analytical and Bioanalytical Chemistry, 2023, 415, pp.6107-6115. ⟨10.1007/s00216-023-04884-4⟩ Article dans une revue cea-04190954v1
Determination of the affinity of biomimetic peptides for uranium through the simultaneous coupling of HILIC to ESI-MS and ICP-MS Lana Abou Zeid,Albert Pell,Marta Garcia Cortes,Hélène Isnard,Pascale Delangleet al. Analytica Chimica Acta, 2023, 1242, pp.340773. ⟨10.1016/j.aca.2022.340773⟩ Article dans une revue cea-03940809v1
Separation and isotope ratio measurements of actinides and lanthanides in spent nuclear fuel samples by CE-MC-ICP-MS Erwan Dupuis,Hélène Isnard,Frédéric Chartier Journal of Analytical Atomic Spectrometry, 2022, 37 (11), pp.2340 - 2350. ⟨10.1039/d2ja00265e⟩ Article dans une revue hal-04661822v1
Determination of $^{144}$Ce/$^{238}$U atom ratio in spent nuclear fuel using double spike isotope dilution mass spectrometry. Aurélien Beaumais,Anthony Nonell,Céline Caussignac,Sébastien Mialle,Guillaume Stadelmannet al. Journal of Analytical Atomic Spectrometry, 2022, 37, pp.1288-1297. ⟨10.1039/d2ja00052k⟩ Article dans une revue cea-04399346v1
Radionuclide analysis using collision–reaction cell ICP-MS technology: a review Silvia Diez-Fernández,Hélène Isnard,Anthony Nonell,Carole Bresson,Frédéric Chartier Journal of Analytical Atomic Spectrometry, 2020, 35 (12), pp.2793-2819. ⟨10.1039/d0ja00211a⟩ Article dans une revue cea-05384944v1
A new method for determining $^{236}$U/$^{238}$U isotope ratios in environmental samples by means of ICP-MS/MS Silvia Diez-Fernández,Hugo Jaegler,Carole Bresson,Frédéric Chartier,O. Evrardet al. Talanta, 2020, 206, pp.120221. ⟨10.1016/j.talanta.2019.120221⟩ Article dans une revue cea-02610582v1
Hyphenation of capillary electrophoresis with MC-ICP-MS – A novel tool for uranium age dating Erwan Dupuis,Hélène Isnard,Charles Evette,Frédéric Chartier Talanta, 2020, 219, pp.121345. ⟨10.1016/j.talanta.2020.121345⟩ Article dans une revue hal-03492132v1
Measurement of the absolute gamma-ray emission intensities from the decay of 147Nd Mark Kellett,L. Vio,Christophe Bobin,Laurine Brondeau,Mikael Cardot-Martinet al. Applied Radiation and Isotopes, 2020, Special issue : 22nd International Conference on Radionuclide Metrology and its Applications, (ICRM 2019) 27 to 31 May 2019, Salamanca, Spain, 166, pp.109349. ⟨10.1016/j.apradiso.2020.109349⟩ Article dans une revue cea-03043636v1
Isotopic variations of copper at the protein level in neuronal human cells exposed in vitro to uranium Eduardo Paredes,Veronique Malard,Claude Vidaud,Emilie Avazeri,Richard Ortegaet al. Analyst, 2019, 144 (20), pp.5928-5933. ⟨10.1039/C9AN01081E⟩ Article dans une revue hal-02447119v1
Reconstruction of uranium and plutonium isotopic signatures in sediment accumulated in the Mano Dam reservoir, Japan, before and after the Fukushima nuclear accident Hugo Jaegler,Fabien Pointurier,Silvia Diez-Fernández,Alkiviadis Gourgiotis,Hélène Isnardet al. Chemosphere, 2019, 225, pp.849-858. ⟨10.1016/j.chemosphere.2019.03.064⟩ Article dans une revue hal-02336278v1
The half-life of 129I Eduardo García-Toraño,T. Altzitzoglou,P. Auerbach,Marie-Martine Bé,Christophe Bobinet al. Applied Radiation and Isotopes, 2018, 140, pp.157-162. ⟨10.1016/j.apradiso.2018.06.007⟩ Article dans une revue cea-02339672v1
Precise U and Pu isotope ratio measurements in nuclear samples by hyphenating capillary electrophoresis and MC-ICPMS B. Martelat,H. Isnard,L. Vio,E. Dupuis,T. Cornetet al. Analytical Chemistry, 2018, 90, pp.8622-8628 Article dans une revue cea-02339670v1
Impact of uranium uptake on isotopic fractionation and endogenous element homeostasis in human neuron-like cells Eduardo Paredes,Emilie Avazeri,Veronique Malard,Claude Vidaud,Pascal E. Reilleret al. Scientific Reports, 2018, 8 (1), pp.17163. ⟨10.1038/s41598-018-35413-4⟩ Article dans une revue hal-01952200v1
A new procedure for high precision isotope ratio determinations of U, Cu and Zn at nanogram levels in cultured human cells: What are the limiting factors? Eduardo Paredes,Emilie Avazeri,Veronique Malard,Claude Vidaud,Richard Ortegaet al. Talanta, 2018, 178, pp.894-904. ⟨10.1016/j.talanta.2017.10.046⟩ Article dans une revue hal-01704961v1
Deconvolution of the isotopic drift in LC-MC-ICPMS coupling: a new tool for studding isotope fractionation induced by sample introduction techniques. Alkiviadis Gourgiotis,Gérard Manhès,Banoit Martelat,Hélène Isnard Journal of Analytical Atomic Spectrometry, 2017, 32, pp.1428-1434. ⟨10.1039/C6JA00418K⟩ Article dans une revue hal-02457227v1
Comparison of a high temperature torch integrated sample introduction system with a desolvation system for the analysis of microsamples through inductively coupled plasma mass spectrometry R. Sanchez,A. Canabate,C. Bresson,F. Chartier,H. Isnardet al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2017, 129, ⟨10.1016/j.sab.2017.01.004⟩ Article dans une revue cea-02421889v1
Evidence of isotopic fractionation of natural uranium in cultured human cells Eduardo Paredes,Emilie Avazeri,Veronique Malard,Claude Vidaud,Pascal E. Reilleret al. Proc.Nat.Acad.Sci., 2016, 113 (49), pp.14007-14012. ⟨10.1073/pnas.1610885113⟩ Article dans une revue hal-01758782v1
Results of the EURAMET.RI(II)- S7.Sm-151 supplementary comparison (EURAMET Project 1292) Marie-Martine Bé,Philippe Cassette,Laurine Brondeau,Carole Fréchou,Valérie Lourençoet al. Metrologia, 2015, 52 (1A), pp.06016 - 06016. ⟨10.1088/0026-1394/52/1A/06016⟩ Article dans une revue hal-01865003v1
Neodymium isotope ratio measurements by LC-MC-ICPMS for nuclear applications: investigation of isotopic fractionation and mass bias correction Florence Guéguen,Hélène Isnard,Anthony Nonell,Laurent Vio,Thomas Vercouteret al. Journal of Analytical Atomic Spectrometry, 2015, 30 (2), pp.443-452. ⟨10.1039/c4ja00361f⟩ Article dans une revue cea-03189920v1
Determination of the 151Sm half-life Marie-Martine Bé,Hélène Isnard,Philippe Cassette,Xavier Mougeot,Valérie Lourençoet al. Radiochimica Acta, 2015, 103 (9), pp.619-626. ⟨10.1515/ract-2015-2393⟩ Article dans une revue hal-01863604v1
Photon emission intensities in the decay of $^{108m}Ag and $^{110m}$Ag Laurent Ferreux,Marie‐christine Lépy,Marie-Martine Bé,H. Isnard,V. Lourenco Applied Radiation and Isotopes, 2014, 87, pp.101 - 106. ⟨10.1016/j.apradiso.2013.11.101⟩ Article dans une revue cea-01832043v1
Method for isotope ratio drift correction by internal amplifier signal synchronization in MC-ICPMS transient signals A. Gourgiotis,Sylvain Bérail,P. Louvat,H. Isnard,J. Moureauet al. Journal of Analytical Atomic Spectrometry, 2014, 29 (9), pp.1607-1617. ⟨10.1039/c4ja00118d⟩ Article dans une revue hal-01590281v1
Purification of a 166mHo solution by successive high-performance liquid chromatography and gravitational chromatography for half-life determination Florence Guéguen,Hélène Isnard,Karsten Kossert,Carole Bresson,Céline Caussignacet al. Journal of Radioanalytical and Nuclear Chemistry, 2014, 302 (1), pp.289-295. ⟨10.1007/s10967-014-3290-z⟩ Article dans une revue hal-04453518v1
Bk and Cf chromatographic separation and $^{249}$Bk/$^{248}$Cm and $^{249}$Cf/$^{248}$Cm elemental ratios determination by inductively coupled plasma quadrupole mass spectrometry A. Gourgiotis,Hélène Isnard,Anthony Nonell,M. Aubert,G. Stadelmannet al. Talanta, 2013, 106, pp.39 - 44. ⟨10.1016/j.talanta.2012.11.056⟩ Article dans une revue cea-01792079v1
Stable (Cu, Mg) and radiogenic (Sr, Nd) isotope fractionation in colloids of boreal organic-rich waters Svetlana Ilina,Jérôme Viers,Sergey Lapitsky,Sebastien Mialle,Vasileios Mavromatiset al. Chemical Geology, 2013, 342, pp.63-75. ⟨10.1016/j.chemgeo.2013.01.019⟩ Article dans une revue istex hal-04453556v1
Coupling between chip based isotachophoresis and multi-collector inductively coupled plasma mass spectrometry for separation and measurement of lanthanides Laurent Vio,Gérard Crétier,Frédéric Chartier,Valérie Geertsen,Alkiviadis Gourgiotiset al. Journal of Analytical Atomic Spectrometry, 2012, 27 (5), pp.850-856. ⟨10.1039/c2ja10283h⟩ Article dans une revue hal-00876095v1
The use of total evaporation method using Channeltron electron multipliers by thermal ionization mass spectrometry for europium isotope ratio measurements on picogram sample amounts S. Mialle,Alexandre Quemet,A. Ponvienne,A. Gourgiotis,M. Aubertet al. International Journal of Mass Spectrometry, 2012, 309, pp.141-147. ⟨10.1016/j.ijms.2011.09.014⟩ Article dans une revue cea-03470721v1
Separation and analysis of lanthanides by isotachophoresis coupled with inductively coupled plasma mass spectrometry. Laurent Vio,Gérard Crétier,Frédéric Chartier,Valérie Geertsen,Alkiviadis Gourgiotiset al. Talanta, 2012, 99, pp.586-593. ⟨10.1016/j.talanta.2012.06.041⟩ Article dans une revue istex hal-00876090v1
Sm isotope composition and Sm/Eu ratio determination in an irradiated 153Eu sample by ion exchange chromatography-quadrupole inductively coupled plasma mass spectrometry combined with double spike isotope dilution technique M. Bourgeois,H. Isnard,A. Gourgiotis,G. Stadelmann,C. Gautieret al. Journal of Analytical Atomic Spectrometry, 2011, 26 (8), pp.1660. ⟨10.1039/c1ja10070j⟩ Article dans une revue cea-04453405v1
Accurate determination of Curium and Californium isotopic ratios by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) in 248Cm samples for transmutation studies A. Gourgiotis,H. Isnard,M. Aubert,E. Dupont,I. Almahamidet al. International Journal of Mass Spectrometry, 2010, 291 (3), pp.101-107. ⟨10.1016/j.ijms.2010.02.002⟩ Article dans une revue istex hal-05217385v1
Simultaneous Uranium /Plutonium separation and direct isotope ratio measurements by using CO2 as gas in a collision/reaction cell based MC-ICPMS A. Gourgiotis,M. Granet,H. Isnard,A. Nonell,Christian Gautieret al. Journal of Analytical Atomic Spectrometry, 2010, 25, pp.1939-1945. ⟨10.1039/c0ja00092b⟩ Article dans une revue istex insu-00578756v1
One step U-Pu-Cs-Ln-steel separation using TRU preconditioned extraction resins from Eichrom for application on transmutation targets S. Quidelleur,M. Granet,I. Laszak,H. Isnard,E. Pons-Branchuet al. Journal of Radioanalytical and Nuclear Chemistry, 2009, 280 (3), pp.507-517. ⟨10.1007/s10967-009-7449-y⟩ Article dans une revue istex hal-03199073v1
High accuracy measurements of Mo isotopes by MC-ICPMS with in situ Mo/Zr separation using N2O in a collision reaction cell Julien Moureau,Mathieu Granet,Frédéric Chartier,Georges Favre,Hélène Isnardet al. Journal of Analytical Atomic Spectrometry, 2008, 23, pp.1538-1544. ⟨10.1039/b803826k⟩ Article dans une revue istex hal-00348456v1
Cs–Ba separation using N2O as a reactant gas in a Multiple Collector-Inductively Coupled Plasma Mass Spectrometer collision-reaction cell: Application to the measurements of Cs isotopes in spent nuclear fuel samples Mathieu Granet,Anthony Nonell,Georges Favre,Frédéric Chartier,Hélène Isnardet al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2008, 63, pp.1309-1314. ⟨10.1016/j.sab.2008.09.011⟩ Article dans une revue istex hal-00348457v1

Communication dans un congrès (20)

Analyses isotopiques de radionucleides et les enjeux de la miniaturisation Hélène Isnard GDR Traces et Ultratraces, Feb 2024, ORSAY, France Communication dans un congrès cea-04465734v1
A New Plutonium Metal Certified Reference Material at CETAMA: the MP4 Standard Sébastien Picart,Marielle Crozet,Davrain Ygor,Caroline Bertorello,Giacomo Cancianiet al. ATALANTE2024, CEA, Sep 2024, Avignon (FR), France Communication dans un congrès cea-04724391v1
Radionuclide measurements by mass spectrometry and radiometric techniques: differences and complementarities Hélène Isnard,Valérie Lourenco Workshop on the Use of Mass Spectrometry in Radionuclide Metrology, Feb 2023, WEBINAR, France Communication dans un congrès cea-04037053v1
Développement analytique pour des mesures isotopiques par spectrométrie de masse en tandem dans le domaine du nucléaire Majd Homaidan Shmeit,Hélène Isnard Atelier ISOTRACE 2023, Oct 2023, MONTPELLIER, France Communication dans un congrès cea-04288528v1
Determination of the 144Ce/238U ratio in spent nuclear fuel samples by double spike isotope dilution mass spectrometry Anthony Nonell,Aurélien Beaumais,Céline Caussignac,Sébastien Mialle,Guillaume Stadelmannet al. AnalytiX-2023, May 2023, OSAKA, Japan Communication dans un congrès cea-04328749v1
Performances of isotopic ratio measurements of Sr and U by MC-ICPMS using oxygen in collision/reaction cell Hélène Isnard,Yvan Gerard,Perters Daniel Goldschmidt 2023, Jul 2023, Lyon, France Communication dans un congrès cea-04288523v1
Développement et validation d'une méthode de mesure directe du rapport $^{237}$Np/$^{238}$U dans des combustibles irradiés en MC-ICPMS. Sébastien Mialle,Anthony Nonell,Hélène Isnard,Céline Cruchet,Céline Caussignacet al. SPECTRATOM 2022, May 2022, Pau, France Communication dans un congrès cea-03887161v1
Application of coupling between capillary electrophoresis and mass spectrometry for precise isotope ratio measurements Julie Stevenin,Erwan Dupuis,Hélène Isnard,Frédéric Chartier Analytics, Sep 2022, Nantes, France Communication dans un congrès cea-04327890v1
Analyse isotopique du plutonium et de l’uranium présents à l’état d’ultra-traces dans des sédiments de rivières de la région de Fukushima Fabien Pointurier,Hugo Jaegler,Alkiviadis Gourgiotis,Hélène Isnard,Silvia Diez-Fernándezet al. SPECTR’ATOM, SPECTR’ATOM 2020, 2022, PAU, France Communication dans un congrès hal-03602218v1
Séparation et spéciation des éléments dans des échantillons nucléaires par couplage entre l'électrophorèse capillaire et la spectrométrie de masse à source plasma et à multicollection E. Dupuis,L. Vio,H. Isnard,F. Chartier Journée de l’école doctorale 388 - 2018, Jun 2018, Paris, France Communication dans un congrès cea-02338564v1
Séparation et spéciation des éléments dans des échantillons nucléaires par couplage entre l'électrophorèse capillaire et la spectrométrie de masse à source plasma et à multicollection E. Dupuis,L. Vio,H. Isnard,F. Chartier Journees du DIM Analytics, May 2018, Paris, France Communication dans un congrès cea-02338966v1
Determination of 236U/238U ratios in environmental samples using ICP-MS/MS. S. Diez, Fernandez,H. Isnard,F. Pointurier,H. Jaegler,C. Bressonet al. Nordic Plasma conference, Jun 2018, Loen, Norway Communication dans un congrès hal-02338990v1
High precision isotopic analysis of U, Cu and Zn in a human neuronal cell model E. Paredes,E. Avazeri,Veronique Malard,C. Vidaud,R. Ortegaet al. 14th International Symposium on Applied Bioinorganic Chemistry ISABC, Jun 2017, Toulouse, France Communication dans un congrès cea-02434541v1
Développement d’une méthode électrophorétique de séparation de l’uranium, du thorium et des lanthanides avec détection par ICP-MS (Q) B. Martelat,H. Isnard,L. Vio,F. Chartier Spectr'Atom - 2016, May 2016, Pau, France Communication dans un congrès cea-02442316v1
Use of 10$^{12}$ and 10$^{13}$ ohm resistor amplifiers for uranium isotopic measurements by TIMS and MC-ICPMS H. Isnard,M. Aubert,A. Nonell,F. Chartier Goldschmidt 2016 - International conference on geochemistry and related subjects, Jun 2016, Yokohama, Japan Communication dans un congrès cea-02439460v1
Analytical development for high precision isotopic measurements by mass spectrometry in the nuclear domain H. Isnard Visite a l'ITU de Karlsruhe, Nov 2015, Karlsruhe, Germany Communication dans un congrès hal-02445738v1
Analytical developments for high precision isotope measurements on transmutation target in the phenix fast neutron reactor H. Isnard,G. Ferlay,S. Eymard,O. Vigneau,J-F. Lebratet al. GLOBAL 2015, Sep 2015, Paris, France Communication dans un congrès cea-02509737v1
Improvement in Thermal-Ionization Mass Spectrometry (TIMS) using Total Flash Evaporation (TFE) method for lanthanides isotope ratio measurements in transmutation targets Sébastien Mialle,A. Gourgiotis,M. Aubert,G. Stadelmann,C. Gautieret al. 2011 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), Jun 2011, Gand, Belgium. pp.1-5, ⟨10.1109/ANIMMA.2011.6172916⟩ Communication dans un congrès hal-05116339v1
Application of collision reaction-cell based MC-ICPMS to in-situ interferences resolution for elemental and isotopic ratios measurements of nuclear fuel samples A. Nonell,Hélène Isnard,M. Granet,J. Moureau,G. Favreet al. 2009 1st International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), Jun 2009, Marseille, France. pp.1-5, ⟨10.1109/ANIMMA.2009.5503712⟩ Communication dans un congrès cea-05384986v1
Étude par modélisation DFT des réactions avec O2 utilisées dans la cellule de collisions / réactions d'un ICP-MS pour supprimer l'interférence isobarique 90Zr/90Sr. Application à la mesure directe du 90Sr dans des solutions de combustibles nucléaires G. Favre,R. Brennetot,F. Chartier,H. Isnard 6èmes Journées Scientifiques de Marcoule, May 2006, La Grande Motte, France Communication dans un congrès hal-00159516v1

Poster de conférence (2)

Evaluation of the affinity and selectivity of biomimetic peptides towards uranium by HILIC-ESI-MS/ICP-MS Lana Abou Zeid,Albert Pell,Marta Garcia Cortes,Hélène Isnard,Pascale Delangleet al. European Winter Conference on Plasma Spectrochemistry, Jan 2023, Ljubljana, Slovenia. 2023 Poster de conférence cea-04118174v1
Comparaison de deux méthodes de séparation chromatographique pour la séparation U-Pu pour des analyses isotopiques par spectrométrie de masse à système multi-collection Céline Cruchet,Sébastien Mialle,Hélène Isnard SPECTRATOM, May 2022, Pau, France. 2022 Poster de conférence cea-04396725v1

HDR (1)

Développements analytiques pour des mesures isotopiques par spectrométrie de masse multicollection dans le domaine du nucléaire Hélène Isnard Chimie. SORBONNE UNIVERSITE, 2018 HDR tel-04565363v1