A Practical Cryogen-Free CO2 Purification and Freezing Technique for Stable Isotope Analysis

ACS Analytical Chemistry has published a technical article that may prove useful for the Geomill 326 in the future: The Geomill 326 can be used to take very small powder samples. However, sometimes the amount is too small to be measured with a general-purpose mass spectrometer. To solve this complication, the first author of this paper is developing a new instrument, of which this technical paper is a part.

http://pubs.acs.org/doi/abs/10.1021/acs.analchem.7b00544