Anthony Nonell

Direct determination of the 237Np/238U ratio in nuclear fuel samples by multicollection inductively coupled plasma mass spectrometry (MC-ICP-MS)

S. Mialle, Anthony Nonell, Céline Cruchet, C. Caussignac et autres

Abstract A new method for the direct measurement of 237Np/238U ratio in irradiated UO2 pellets by multicollection inductively coupled plasma mass spectrometry (MC-ICP-MS) is proposed. It allows the determination of ratios down to 10 × 10–6 mol·mol−1 using ion counter and Faraday …

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Development and validation of isotopic analysis methods by thermal ionization mass spectrometry for small amounts of americium

Matthieu Paulhac Buisson, Sébastien Mialle, C. Caussignac, Céline Cruchet et autres

Determination of the 144 Ce/ 238 U atomic ratio in spent nuclear fuel using double spike isotope dilution mass spectrometry

Aurélien Beaumais, Anthony Nonell, C. Caussignac, Sébastien Mialle et autres

Determination of the 144 Ce/ 238 U ratio in spent nuclear fuels using the double isotope dilution technique associated with thermal ionization mass spectrometry measurements.

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Determining the isotopic composition of elements from the electrospray ionization mass spectra of their chemical species

Eugene J. Blanchard, Eduardo Paredes, Anaïs Rincel, Anthony Nonell et autres

Isotopic composition of elements was determined by applying a deconvolution method that we developed to electrospray mass spectra of the associated chemical species.

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Cytoplasmic aggregation of uranium in human dopaminergic cells after continuous exposure to soluble uranyl at non-cytotoxic concentrations

Asunción Carmona, Francesco Porcaro, Andréa Somogyi, Stéphane Roudeau et autres

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Cytoplasmic aggregation of uranium in human dopaminergic cells after continuous exposure to soluble uranyl at non-cytotoxic concentrations

Asunción Carmona, Francesco Porcaro, Andréa Somogyi, Stéphane Roudeau et autres

ABSTRACT Uranium exposure can lead to neurobehavioral alterations in particular of the monoaminergic system, even at non-cytotoxic concentrations. However, the mechanisms of uranium neurotoxicity after non-cytotoxic exposure are still poorly understood. In particular, imaging uranium in neurons at low intracellular concentration is …

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Radionuclide analysis using collision–reaction cell ICP-MS technology: a review

Silvia Diez-Fernández, Hélène Isnard, Anthony Nonell, Carole Bresson et autres

This article reviews the elemental and isotopic analysis of radionuclides using collision–reaction cell technology in ICP-MS applications.

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A new method for determining 236U/238U isotope ratios in environmental samples by means OF ICP-MS/MS

Silvia Diez-Fernández, Hugo Jaegler, Carole Bresson, Fredéric Chartier et autres

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Isotopic variations of copper at the protein fraction level in neuronal human cells exposed in vitro to uranium

Eduardo Paredes, Véronique Malard, Claude Vidaud, Émilie Avazeri et autres

, k = 2) for the four fractions, satisfying the mass balance. The results obtained in this preliminary study pave the way for dedicated analytical developments to identify new specific disease biomarkers, to gain insight into stress-induced altered metabolic processes, as well …

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Instrumentation and measurement in a nuclear environment

Christiane Alba–Simionesco, Pierre-Guy Allinei, Catherine Andrieux-Martinet, É. Ansoborlo et autres

Impact of uranium uptake on isotopic fractionation and endogenous element homeostasis in human neuron-like cells

Eduardo Paredes, Émilie Avazeri, Véronique Malard, Claude Vidaud et autres

Abstract The impact of natural uranium (U) on differentiated human neuron-like cells exposed to 1, 10, 125, and 250 µM of U for seven days was assessed. In particular, the effect of the U uptake on the homeostatic modulation of several endogenous …

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Precise U and Pu Isotope Ratio Measurements in Nuclear Samples by Hyphenating Capillary Electrophoresis and MC-ICPMS

Benoît Martelat, Hélène Isnard, Laurent Vio, Erwan Dupuis et autres

Precise isotopic and elemental characterization of spent nuclear fuel is a major concern for the validation of the neutronic calculation codes and waste management strategy in the nuclear industry. Generally, the elements of interest, particularly U and Pu which are the two …

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