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Ground-based observation of clusters and nucleation-mode particles in the Amazon
International audience Abstract. We investigated atmospheric new particle formation (NPF) in the Amazon rainforest using direct measurement methods. To our knowledge this is the first direct observation of NPF events in the Amazon region. However, previous observations elsewhere in Brazil showed the...
Chemical Characterization of Biomass Burning Sources Using Targeted and Untargeted Approaches
Biomass burning is a significant source of particulate matter (PM) in ambient air. To date, the evaluation of the distinct contributions of both, wood burning, used for residential heating, and green waste burning, on the PM concentration levels is difficult and rarely achieved. Such discrimination...
Estimation of sampling uncertainty in lake-water monitoring in a collaborative field trial
International audience A collaborative sampling trial was performed by AQUAREF (French national reference laboratory for water and the aquatic environment) at Paladru Lake, Isere, France. This trial was the first national test aiming at improving knowledge of the effect, in lake water, of sampling o...
δ 15N measurement of organic and inorganic substances by EA-IRMS: a speciation-dependent procedure
Little attention has been paid so far to the influence of the chemical nature of the substance when measuring δ 15N by elemental analysis (EA)-isotope ratio mass spectrometry (IRMS). Although the bulk nitrogen isotope analysis of organic material is not to be questioned, literature from different di...
Screening and risk management solutions for steroidal estrogens in surface and wastewater
International audience Background : The European Commission Implementing Decision EU 2015/495 included three steroidal estrogens, namely 17α-ethinyl estradiol, 17β-estradiol, and estrone, in the so-called “watch list” of the EU Water Framework Directive (WFD). The monitoring of these compounds is di...
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Comparison of voltammetric and AAS methods for As(III) quantification in presence of iron species in model water samples with a low mineral content
International audience Voltammetry was adapted to quantify As(III) in model water samples with a low mineral content and compared to the Hydride Generation Atomic Absorption Spectrometry (HG-AAS) method. The specificity lies in the study of the influence of interfering species on the quantification...
Identification of Archaeological Adhesives Using Direct Inlet Electron Ionization Mass Spectrometry
A simple method of surface functionalisation for immuno-specific immobilisation of proteins
Determination of alkylated tin compounds in landfill leachates using isotopically enriched tin species with GC-ICP-MS detection
cited By 23 International audience A method for the simultaneous determination of methylated, ethylated and butylated tin compounds in landfill leachates has been developed in this work. The assessment of the organotin compound composition has been achieved by the development of a specific GC-ICP-MS...
Inhibitory Effect of Azamacrocyclic Ligands on Polyphenol Oxidase in Model and Food Systems
Application of high Power ultrasounds during red wine vinification
A cross population between D. kaki and D. virginiana shows high variability for saline tolerance and improved salt stress tolerance
Micro/Nano Devices for Chemical Analysis
Since the concept of micro total analysis systems (µ-TAS) has been advocated, various kinds of micro/nano devices have been developed by researchers in many fields, such as in chemistry, chemical engineering, mechanical engineering, electric engineering, biology, and medicine, among others. The anal...
Natural Gas Potential of Pakistan an Important Parameter in Mitigating Greenhouse Gas Emissions
Climate change is one of the most challenging issues in Pakistan and has affected humans in every sphere of life. Pakistan is ranked on 8th in the world among the countries emitting Greenhouse gases (GHG). Such an extensive emission of GHG is due to the growing number of industrial units and urban c...
Infographic analytical tools for decision makers: analysis of the research production in sciences. Application to chemistry, comparison between Marseille and Montpellier (France)
Determination of catecholamines in plasma and urine.
For more than 20 years, measurement of catecholamines in plasma and urine in clinical chemistry laboratories has been the cornerstone of the diagnosis of neuroendocrine tumors deriving from the neural crest such as pheochromocytoma (PHEO) and neuroblastoma (NB), and is still used to assess sympathet...
Understanding otolith biomineralization processes: new insights into microscale spatial distribution of organic and mineral fractions from Raman microspectrometry
International audience It is generally accepted that the formation of otolith microstructures (L- and D-zones) and in particular the organic and mineral fractions vary on a daily basis. Raman microspectrometry provides a nondestructive technique that can be used to provide structural information on...
Molecular criteria for discriminating adipose fat and milk from different species by nanoESI MS and MS/MS of their triacylglycerols: application to archaeological remains
Improving the analysis of liquid plant products absorbed in Mediterranean transport amphorae
International audience Amphorae found across the Mediterranean in antiquity are thought to have been used to transport high value liquid plant commodities, such as olive oil and wine. Determining their exact contents using chemical analysis is needed to help characterise these important maritime eco...
TVOC - Revisited
Background: TVOC (total volatile organic compounds) has been used as a sum parameter in indoor air sciences for over 40 years. In the beginning, individual VOC concentrations determined by gas chromatography were simply added together. However, several methods for calculating TVOC have become establ...
Life Cycle Assessment and Life Cycle Cost of an Innovative Carbon Paper Sensor for 17α-Ethinylestradiol and Comparison with the Classical Chromatographic Method
Nowadays there is a growing concern with the environment and sustainability, which means that better methods, including pollutants analysis, with less consumption of materials, organic solvents, and energy, need to be developed. Considering the almost inexistent information about the topic, the main...
U-series and 14 C datings for a newly discovered decorated area in the Palaeolithic cave of La Peña de Candamo (Asturies, Northern Spain)
The book ‘Organic Synthesis - A Nascent Relook’ is a compendium of the recent progress in all aspects of organic chemistry including bioorganic chemistry, organo-metallic chemistry, asymmetric synthesis, heterocyclic chemistry, natural product chemistry, catalytic, green chemistry and medicinal chem...
Antibiotics mineralization by electrochemical and UV-based hybrid processes: evaluation of the synergistic effect
Synchrotron Radiation and neutrons in Art and Archaeology 2014 (Editorial)