Hi everybody:

We are going to do some 18O-NO3 analyses by pyrolisis, and we would like to
know the TC/EA-IRMS conditions that other laboratories are working with, and
if they have any specific problems...
Any suggestions will be also wellcome.

So, the specific questions are:
1)Which are the temperatures you use for the:
-column
-reactor

2)Which are the pressures you gave to the:
-carrier
-auxiliar
-He purge
-CO pressure

3)Do you work with Helium dilution? Which one?

4)And the weights of samples?

I will be waiting for you answers, and thanks in advance!
Regards,
laura


Laura Vitòria i Codina
*********************************************
Grup de Mineralogia Aplicada i Medi Ambient
Dpt. Cristal.lografia, Mineralogia i Dipòsits Minerals
Facultat de Geologia
Universitat de Barcelona
martí i Franquès s/n
08028 Barcelona
Tel. 93 402 13 45
Fax. 93 402 13 40
e-mail: [log in to unmask]