TY  - RPRT
TI  - Caution on the use of liquid nitrogen traps in stable hydrogen isotope-ratio mass spectrometry
AU  - Tyler B. Coplen
AU  - Haiping Qi
PY  - 2010
DO  - 10.1021/ac101570f
UR  - https://pubs.usgs.gov/publication/70042347
ID  - 70042347
ER  -