Dear isogeochemists,

Do some of you have knowledge or references concerning the measurement of
13CO2/12CO2 ratios (either at 13C-enriched or natural abundances)
by infrared absorbance techniques (FTIR, laser diodes, NDIR ?)
What are the performances of such methods ?

Thanks in advance from France.



------------------------------------------------------
Jerome Balesdent, Directeur de Recherches INRA

Laboratoire d'Ecologie Microbienne de la Rhizosphere
(UMR CNRS/CEA #163)
DEVM - CEA - Centre de Cadarache
F13108 Saint-Paul-lez-Durance Cedex

tel : +33 4 42 25 77 54   secr: +33 4 42 25 27 53
fax : +33 4 42 25 66 48   [log in to unmask]
------------------------------------------------------