Zeitschriftenartikel
Brooks, P. D.; Geilmann, H.; Werner, R. A.; Brand, W. A.: Improved precision of coupled δ
13C and δ
15N measurements from single samples using an elemental analyzer/isotope ratio mass spectrometer combination with a post-column sixport valve and selective CO
2 trapping; improved halide robustness of the combustion reactor using CeO
2. Rapid Communications in Mass Spectrometry
17 (16), S. 1924 - 1926 (2003)