Gesa Kutschera,

Lots of references are available here are some of them:
Atekwana, E.A., Krishnamurthy, R.V., 1998. Seasonal variations of dissolved 
inorganic carbon and d13C of surface waters: applications of a modified gas 
evolution technique. Journal of Hydrology 205, 265-278.
Amiotte-Suchet, P., Aubert, D., Probst, J.L., Gauthier-Lafaye, F., Probst, 
A., Andreux, F., Viville, D., 1999. d13C pattern of dissolved inorganic 
carbon in a small granitic catchment: the Strenbach case study (Vosges 
mountains, France ). Chemical Geology 159, 129-145.
Aucour, A.-M., Sheppard, S.M.F., Guyomar, O., Wattelet, J., 1999. Use 
of  13C to trace origin and cycling of inorganic carbon in the Rhône river 
system. Chemical Geology 159, 87-105.
Yang, C., Telmer, K., Viezer, J., 1996. Chemical dynamics of the 
St-Lawrence riverine system: DH2O, 18OH2O, 13CDIC, 34Ssulfate, and 
dissolved 87Sr/86Sr. Geochimica et Cosmochimica Acta 60; 5, 851-866.
I also have a lab protocol if you want to know the technique we use. E-mail 
me at the address below if want it ([log in to unmask]).





At 10:45 00-06-21 +0800, you wrote:
>Did anybody measure delta 13 C of dissolved inorganic carbon or knows a
>reference where methods are described and/or results are presented?

Jean-François Hélie
----------------------------------------------------
GEOTOP-UQAM
Université du Québec à Montréal
C.P.8888 succ. Centre-ville
H3C 3P8
Tél: (514) 987-3000 #4631
Fax: (514) 987-3635
e-mail: [log in to unmask]
Bureau: PK-7515