A5088347444- Chemical Thermodynamics and Molecular Structure
- Analytical chemistry methods development
- Laser-induced spectroscopy and plasma
- Crystallization and Solubility Studies
- Thermal and Kinetic Analysis
- Crystallography and molecular interactions
- Cultural Heritage Materials Analysis
- X-ray Diffraction in Crystallography
- Mercury impact and mitigation studies
- Geological and Geochemical Analysis
- Thermodynamic properties of mixtures
- Phase Equilibria and Thermodynamics
- Clay minerals and soil interactions
- Concrete and Cement Materials Research
- Geological and Tectonic Studies in Latin America
- Mass Spectrometry Techniques and Applications
- nanoparticles nucleation surface interactions
- Calcium Carbonate Crystallization and Inhibition
- Phase Change Materials Research
- Nuclear Materials and Properties
- Isotope Analysis in Ecology
- Crystal Structures and Properties
- X-ray Spectroscopy and Fluorescence Analysis
- Fullerene Chemistry and Applications
- Chemical Looping and Thermochemical Processes
University of Central Florida
2018-2024
Icahn School of Medicine at Mount Sinai
2022
Central University of Venezuela
2008-2015
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2012
Centre National de la Recherche Scientifique
2012
Universitat de Barcelona
1990-2010
CEA Cadarache
2004
As renal development and maturation processes begin in utero continue through early childhood, sensitive developmental periods arise during which metal exposures can program subclinical nephrotoxicity that manifests later life. We used novel dentine biomarkers of established nephrotoxicants including arsenic (As), cadmium (Cd), lead (Pb), chromium (Cr), lithium (Li), their mixtures, to identify critical windows exposure-associated kidney function alterations preadolescents.Participants...
Abstract New chemical and structural data on sepiolite-falcondoite in garnierite veins from the Falcondo Ni-laterite deposits, central Dominican Republic, are reported. Samples of Ni-sepiolite-falcondoite vary colour whitish green to depending NiO content (wt.%) amount silica present. The texture is normally schistose friable but samples with considerable quartz and/or amorphous compact hard. Back-scattered electron images indicate that composed at least three generations...
A novel method for the preparation of crude oil samples based on a xerogel matrix was developed elemental analysis using laser ablation–double focusing sector field inductively coupled plasma-mass spectrometry. The and aqueous solution were successfully encapsulated zirconium n-propoxide. use produces stable homogeneous pellets, avoids splashing sample allows inorganic standards to elaborate calibration curve. Sulfur, nickel vanadium selected as test elements indium used internal standard...
Transparent ceramics are important optical materials with applications in street lighting, high-strength windows, electro- and magneto-optical isolators, high-power laser gain media radiation detectors. Their fabrication most often relies on powder densification techniques carried out at high temperatures, sometimes promoted by sintering additives. Here, we describe the application of laser-induced breakdown spectroscopy (LIBS) for following concentration levels silica used as a agent...
Encapsulation of samples in Zr xerogels has been implemented for the elemental analysis crude oils using laser-induced breakdown spectroscopy. Pellets produced from proved to be durable and homogeneous, they allow ablation without splatters. Ni V present Venezuelan oil were used as probe elements, Yttrium was an internal standard take into account fluctuations amount ablated material. All calibration curves obtained described by high correlation coefficients, r2 > 0.990. Detection limits 7 4...
In this work, we propose the use of molecular emission calcium fluoride (CaF) by laser induced breakdown spectroscopy (LIBS) to obtain quantitative distribution images teeth.
come from teaching and research institutions in France or abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés.
Nuclear waste management has led to recycling PuO/sub 2/ into mixed oxide fuel nuclear (MOX). Its manufacturing route involves a sintering process. A multiscale model is under construction in order predict the evolution of sample characteristics during and improve conditions. The purpose small scale simulate grain size chemistry micrometer large samples. In green state, crystallites are 0.3 /spl mu/m made either UO/sub 2+x/ or 2-y/. After (U,Pu)O/sub 2-z/ solid solutions formed with...
The powder data for p -chloroiodobenzene and -bromochlorobenzene/ mixed crystals [ BCB] x CIB] 1 − at 293 K are reported; their stability is given. cell dimensions have been refined by least squares from accurate diffractometer recorded T = (1) (quartz as internal standard). Vertical diffractometer, graphite monochromator, Cu Kα −Cu 2 correction so that λ 1.54056 Å. They all isomorphous, monoclinic, P / a with Z 2. 15.818(4), b 5.912(2), c 4.214(2) Å, β 113.61(1)°, V 361.1 Å 3 , D 2.193 Mg m...
The α-phase structure of the title compound, C6H4Cl2, has been accurately redetermined at room temperature. Comparison with 100 K data shows that all different shortest intermolecular contacts (Cl⋯Cl, Cl⋯C, Cl⋯H, C⋯C, C⋯H, H⋯H) undergo thermal expansion. A three-centred hydrogen-bonding geometry is considered for some Cl⋯H contacts.