Université de Poitiers
IC2MP – UMR7285
14, Allée Jean Monnet Build C8 – 86000 Poitiers
Tel. : +33 (0) 5 49 45 37 59
Otro tel. : +33 (0) 5 49 45 41 92
Email : laurent.grasset[at]


Geoquímica Orgánica, herramientas químicas para el estudio molecular de la naturaleza y la dinámica de la materia orgánica en los suelos y sedimentos. Humificación. Biogéomarqueurs moleculares.


Characterization of lignin in low rank coal Monomers humic acids using the Derivatization / reductive cleavage method.
L. Grasset, Z. Vlčková, J. Kučerík, A. Ambles. 2010 . Organic Geochemistry. 41, 905-909.

Sequential extraction and spectroscopic characterization of the organic matter of the Callovian-Oxfordian formation.
L. Stifle, J. Patent, T. Schäfer, F. Claret, E.C. Gaucher, A. Albrecht, A. Ambles. 2010 . Organic Geochemistry. 41, 221-233.

Changes in Aboveground plant composition and belowground microbial community structure and function ombrotrophic peatland Following restoration.
R. Andersen, L. Grasset, Mr. N. Thormann, L. Rochefort, AJ Francez. 2010 . Soil Biology and Biochemistry, 42, 291-301.

Lignite pre-treatment and Its effect on bio-stimulative properties of lignite humic acids respectively.
Vlčková, Z., Kučerík, J., Grasset, L., Pekar. M. 2009 . Soil Biology and Biochemistry, 41, 1894-1901.

Some remarks on the origin of lignite humic acids optical properties.
Čechlovská, H., Válková, D., Grasset, L., Fasurová, N., Kučerík, J. 2009 . Petroleum & Coal, 51, 33-44.

Molecular compounds generated by ruthenium tetroxide oxidation and preparative off line of lignite humic acids thermochemolysis from South Moravia: Implications for molecular structure.
Válková, D. Grasset, L., Ambles, A., 2009. Fuel 88, 2113-2121.

Thermochemolysis in search for organics in extraterrestrial environments.
Geffroy-Rodier, C., Grasset, L., Sternberg, R., Buch, A., A. Ambles, 2009. Journal of Analytical and Applied Pyrolysis, 85, 454-459.

TMAH-preparative thermochemolysis for the characterization of organic matter in densimetric fractions of a Mediterranean forest soil.
Grasset, L., Rovira, P., Ambles, A., 2009. Journal of Analytical and Applied Pyrolysis, 85, 435-441.

Nature and origin of lipids in clay size fraction of a soil cultivated as Revealed using preparative thermochemolysis.
Grasset, L., Martinod, J., Plante, AF, Ambles, A., Chenu, C., Righi, D. 2009 . Organic Geochemistry 40, 70-78.

Palaeoenvironment assessment of Pliocene lignite Lom (Bulgaria) from bitumen analysis and preparative off line thermochemolysis.
Stefanova, M., Ivanov, D., Yaneva, N., Marinov, S., Grasset, L., Ambles, A., 2008. Organic Geochemistry 39, 1589-1605.

Catalytic conversion of cholesterol HFAU over zeolites.
Huot, F. Grasset, L., Magnoux, P., Ambles, A., 2007. Journal of Molecular Catalysis A: Chemical 265, 117-126.

Free and esterified aliphatic carboxylic acids in humin and humic acids from a peat sample as Revealed by pyrolysis with tetramethylammonium hydroxide or tetraethylammonium acetate.
Grasset, L., Guignard, C., Ambles, A., 2002. Organic Geochemistry 33, 181-188.

Characterisation and differentiation of kerogens by pyrolytic and chemical degradation techniques.
González-Vila, FJ, Ambles, A., Del Río, JC, Grasset, L. 2001 . Journal of Analytical and Applied Pyrolysis 58-59, 315-328.

Structural study of soil humic acids and humin using a new preparative thermochemolysis technique.
Grasset, L., Ambles, A., 1998. Journal of Analytical and Applied Pyrolysis 47, 1-12.

Aliphatic lipids released from a soil humin Effective enzymatic degradation of cellulose.
Grasset, L., Ambles, A., 1998. Organic Geochemistry 29, 893-897.

Structure of humin and humic acid from acid soil year as Revealed by phase transfer catalyzed hydrolysis.
Grasset, L., Ambles, A., 1998. Organic Geochemistry 29, 881-891.

Ester and ether bond cleavage in immature kerogens.
Ambles, A., Grasset, L., Dupas, G., Jacquesy, J.-C., 1996. Organic Geochemistry 24, 681-690


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