Hi everybody


A interesting new technique for measuring C and H isotope composition of
methane in gas mixtures (with no sample preparation!) using a tunable diode
laser has been developed at the Max Plank Institute in Mainz, Germany.
A detailed description of the technique can be found in
Bergamaschi P., Schupp M. and Harris G.W. (1994) Applied optics, vol 33, p.
7704-7716.


                         Stefano Bernasconi