5 Key Takeaways

• 1

  A portable Raman system enables identification of preservation fluids in sealed specimens without opening containers.

• 2

  The study achieved 78.5% correct identification of preservation fluids using spatially offset Raman spectroscopy (SORS).

• 3

  Researchers created a calibration set of 20 mock-up preservation fluids to address the diversity of historic formulations.

• 4

  SORS can also analyze container materials, differentiating between types of glass and plastics used in specimen storage.

• 5

  This noninvasive method enhances conservation decision-making and improves understanding of historical specimen storage.