Ferretti, D. The development and application of a new high precision GC-IRMS technique for N2O-free isotopic analysis of atmospheric CO2. PhD thesis?
Ferretti, D.F. and Lowe, D.C. 1998. A new technique for high precision N2O free isotopic analysis of δ13C and δ18O in atmospheric CO2 from small air samples: Conflo GS-IRMS and Pacific Ocean measurements. EOS Transactions American
... Geophysical Union 79: F112.
Ferretti, D.G., Low, D.C., Martin, R.J. and Brailsford, G.W. 2000. A new Gas chromatograph-isotope ratio mass spectrometry technique for high precision, N2O free analysis of δ13C and δ18O in atmospheric CO2 from small air samples. Journal of Geophysical Research 105: 6709-6718.
Smith, A.M., Petrenko, V.V., Hua, Q., Southon, J., Brailsford, G. 2007. The effect of N2O catalyst and means of water vapor removal on the graphitization of small CO2 samples. Radiocarbon 49 (2): 245-254.