Dear all working with EA-IRMS (better if NA1500)
Currently I am trying measuring samples with quite low amount of carbon. In
order to get a normal signal in my mass, I have increased my emission
current (of course, working in a range where I am able to weigh the
samples). But now I have increased my blank signals as well!. My empty tin
capsules give me now around 7% of the signal in a normal sample. I think
washing with a organic solvent could reduce this blank, Which would you
recomend me? or is it possible to buy better tin capsules?
Regards
Rafael
Dr. Rafael Nuņez Gomez
Dpto. Ciencias de la Tierra y Quimica Ambiental
Estacion Experimental del Zaidin
Consejo Superior de Investigaciones Cientificas
Profesor Albareda 1, 18008 Granada, Spain
Tf 34-958-121011 Fax 34-958-129600
email: [log in to unmask]http://www.eez.csic.es/~isotopos
