Chlorofluorocarbons and noble gas measured on water bottle samples during POLARSTERN cruise ANT-XXIII/7

During the expedition a total of 550 samples on 37 CTD stations were collected for chlorofluorocarbons (CFC-11 and CFC-12). The water samples from the rosette system were collected into 100 ml glass ampoules and sealed off after a CFC free headspace of pure nitrogen had been applied. Furthermore, 310 samples from 30 stations were collected for helium isotopes (3He, 4He) and neon (Ne). The water samples from the niskin bottles were stored in clamped off copper tubes.