Evaluation of Four Spectroscopic Techniques for Rapid Authentication of Covid-19 Vaccines

ATR-FTIR, NIR, Raman and fluorescence spectroscopy are complementary in authenticating Covid-19 vaccines
Selecting the appropriate spectroscopic technique depends on the products’ physicochemical properties and requirements to maintain product integrity
Spatially offset Raman spectroscopy for maintaining products integrity
Where product can be destroyed, synchronous fluorescence, ATR-FTIR, or NIR can be used provided interference from water is addressed for ATR-FTIR and NIR spectroscopy

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