Key points are not available for this paper at this time.
We have developed a method of graphitization from CO 2 samples for accurate 14 C measurements by accelerator mass spectrometry. Our batch method, using a sealed Vycor tube, reduces the risk of contamination during graphitization and makes it possible to prepare many samples in a short time (typically 20 samples per day).
Kitagawa et al. (Fri,) studied this question.