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Portal > Offres > Offre UMR5254-SOPPUY-006 - Jeune hercheur postdoctorant H/F (moins de 2 ans après la soutenance de thèse de doctorat) en chimie et biogéochimie environnementale : étude expérimentale du fractionnement isotopique du mercure en présence de micro-organismes photosynthétiques

Postdoctoral researcher M / F (offer reserved for youg researchers, less than 2 years after the defe

This offer is available in the following languages:
Français - Anglais

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General information

Reference : UMR5254-SOPPUY-006
Workplace : PAU
Date of publication : Tuesday, September 10, 2019
Type of Contract : FTC Scientist
Contract Period : 18 months
Expected date of employment : 15 November 2019
Proportion of work : Full time
Remuneration : Indicative remuneration: approx €2 500 gross / monthly (offer reserved for young researchers : beginning of the contract less than 2 years after the defense of the doctoral thesis)
Desired level of education : PhD
Experience required : 1 to 4 years

Missions

Understanding the pathways of mercury (Hg) transformation in aquatic systems is an active area of research. However, given the important work done on bacteria, the role of phototrophic micro-organisms in abiotic and biotic transformations of mercury is not well understood. The main objective of this research work, within the framework of the PHYTAMBA international project (co-funded by the ANR and the French NSF), is to obtain new mechanistic concepts on the role of phytoplankton in the mercury cycle and its transformations in the surface waters. This experimental study is at the crossroads between analytical and environmental chemistry, biogeochemistry and isotope geochemistry, and relies on the use of stable natural isotopes of Hg. Given the importance of phytoplankton in the biogeochemistry of mercury, which has always been questioned, but has never been addressed systematically, many original results are expected.

Activities

Understanding the pathways of mercury (Hg) transformation in aquatic systems is an active area of research. However, given the important work done on bacteria, the role of phototrophic micro-organisms in abiotic and biotic transformations of mercury is not well understood. The main objective of this research work, within the framework of the PHYTAMBA international project (co-funded by the ANR and the French NSF), is to obtain new mechanistic concepts on the role of phytoplankton in the mercury cycle and its transformations in the surface waters. This experimental study is at the crossroads between analytical and environmental chemistry, biogeochemistry and isotope geochemistry, and relies on the use of stable natural isotopes of Hg. Given the importance of phytoplankton in the biogeochemistry of mercury, which has always been questioned, but has never been addressed systematically, many original results are expected.

Skills

The selected candidate must have solid experience in :
- physical and analytical chemistry or isotope geochemistry,
- Hg trace analysis, Hg speciation and / or stable Hg isotopic composition,
Primarily on ICPMS-based techniques.
- The candidate must have demonstrated his expertise by writing articles in peer-reviewed journals and must be comfortable with multidisciplinary team work involving various French and Swiss researchers and students from different fields of expertise.

Work Context

IPREM (Institute of Analytical Sciences and Physico-Chemistry of the Environment and Materials) is a joint research unit CNRS / UPPA (UMR 5254). The IPREM (https://iprem.univ-pau.fr/) brings together more than 250 people interested in the development of fundamental knowledge in physico-chemistry, analytical chemistry and microbiology, in relation to applications concerning the structure of living organisms, environmental management and functional properties of different classes of materials.
The recruited researcher will carry out his research in the framework of the environmental chemistry and microbiology cluster of IPREM.
Part of the experimental work on photosynthetic microorganisms will be conducted at the University of Geneva, in the group of Professor V. Slaveykova and in the framework of the international PHYTAMBA project (2018-2022, web: www.unige.ch/forel/en / biogeochemistry / projects1 / phytamba /).

Constraints and risks

Handling of chemicals (acids, solvents, mercury standards).

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