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How should air-sensitive samples be handled?

For air-sensitive samples, we have had success with the following approach:

  • Loading in a glovebox
  • Adding an extra layer of Kapton tape over the edges of the primary window
  • Keeping under argon until just before measurement
  • Storing the sample stick in a desiccator (or back under argon) between PDF, XRD, and SAXS runs 

See here for more details.

This method has been tested with various materials including LiZrCl-type samples that remained stable for both PDF and XRD throughout the shift. Without these precautions, they transformed within 10–15 minutes. We are currently designing a new version of the holder that is formally sealed. 

If your samples are air-sensitive, please indicate whether they should be handled in a glove box or if they can be stored and loaded under ambient conditions.