Article

Agilent Technologies and the UK’s Science and Technology Facilities Council (STFC) implemented spatially offset Raman spectroscopy (SORS) to analyze preservation fluids in historic specimens at the Natural History Museum in London. This method allows for non-invasive examination of jars containing specimens collected by Charles Darwin, avoiding risks of evaporation and contamination.

SORS, developed at STFC in 2006, enhances data collection from subsurface compositions. The study analyzed 46 specimens, identifying preservation fluids accurately in 78.5% of cases. SORS may also assist in monitoring chemical changes in specimens over time, enhancing conservation strategies.