SORS Identifies Preservation Fluids Through Sealed Museum Jars
Portable spatially offset Raman spectroscopy and multivariate models classify historic wet-collection fluids in situ
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A portable Raman system enables identification of preservation fluids in sealed specimens without opening containers.
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The study achieved 78.5% correct identification of preservation fluids using spatially offset Raman spectroscopy (SORS).
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Researchers created a calibration set of 20 mock-up preservation fluids to address the diversity of historic formulations.
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SORS can also analyze container materials, differentiating between types of glass and plastics used in specimen storage.
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This noninvasive method enhances conservation decision-making and improves understanding of historical specimen storage.
