TY - JOUR A1 - Mohn, J. A1 - Guggenheim, C. A1 - Tuzson, B. A1 - Vollmer, M. K. A1 - Emmenegger, L. T1 - A liquid nitrogen-free preconcentration unit for measurements of ambient N2O isotopomers by QCLAS JO - Atmos. Meas. Tech. Discuss. J1 - AMTD VL - 2 IS - 6 SP - 3099 EP - 3126 Y1 - 2009/12/04 PB - Copernicus Publications SN - 1867-8610 UR - http://www.atmos-meas-tech-discuss.net/2/3099/2009/ L1 - http://www.atmos-meas-tech-discuss.net/2/3099/2009/amtd-2-3099-2009.pdf DO - 10.5194/amtd-2-3099-2009 ER -