L'étude présentée dans ce rapport rend compte de la dérive analytique, problème courant en chimie analytique, qui a un impact important sur les analyses et la comparaison des échantillons en analyse non-ciblée. Les solutions disponibles dans le domaine de la métabolomique ont été étudiées en profondeur pour identifier les méthodes de correction dis...
Le programme ECHIBIOTEB (« outils innovants d’Échantillonnage, d’analyses CHImiques et BIOlogiques pour le suivi des Traitements avancés des Eaux usées et des Boues ») est financé par l’Agence Nationale de la Recherche (ANR). Débuté en mars 2011, il se terminera en décembre 2014. Il est coordonné par Irstea. Il implique un consortium aux compétence...
Published in Applied Microbiology and Biotechnology
Despite their importance as potent odors that contribute to the aroma of numerous cheeses, S-methyl thioesters formation pathways have not been fully established yet. In a first part of our work, we demonstrated that Brevibacterium antiquum and Brevibacterium aurantiacum could produce S-methyl thioesters using short-chain fatty acids or branched-ch...
Many soil remediation techniques consist in decreasing the mobility of trace metals by means of adding trace metal binding phases. For this study, whose aim is to assess the efficiency of soil remediation method by binding phase amendment, a kinetic fractionation method that provides the labile and slowly labile trace metal amounts in soil has been...
The kinetic aspects are not usually tackled when mimicking the soil trace metal mobilization. In this work, a simple procedure is developed for measuring the kinetics of Pb, Cu and Cd transfer from the soil solid phase towards a resin sink. A ternary system of Soil/EDTA/Chelex was employed for mimicking the metal transfer from two agricultural soil...
Published in Analytica Chimica Acta
Published in Analytical and Bioanalytical Chemistry
Published in Analytical and Bioanalytical Chemistry
A sensitive method for the simultaneous analysis of five estrogens in sewage sludge was developed. The extraction and purification steps were optimized and the matrix effects were evaluated. The chromatographic gradient was optimized to limit matrix effects and the analysis step was performed by LC-MS/MS. The method consists of an ASE® extraction w...
The use of sodium-thiosulfate (Na-thiosulfate) as a reagent for the extraction of mercury (Hg) from soil was investigated. High organic matter content in soil plays a major role in retaining metals. It has previously been reported that using the cold vapour atomic absorption method, powerful reagents such as EDTA, DTPA and cysteine could not releas...
Nowadays, there are increasingly stringent regulations requiring drastic treatment of 2,4,6- trinitrotoluene (TNT) contaminated waters to generate treated waters which could be easily reused or released into the environment without any harmful effects. TNT is among the most highly suspected explosive compounds that interfere with groundwater system...
