Journal Article
Qi, H.; Coplen, T. B.; Mroczkowski, S. J.; Brand, W. A.; Brandes, L.; Geilmann, H.; Schimmelmann, A.: A new organic reference material,
L-glutamic acid, USGS41a, for δ
13C and δ
15N measurements − a replacement for USGS41. Rapid Communications in Mass Spectrometry
30 (7), pp. 859 - 866 (2016)