FTIR of Pegylated Nanostructured lipid carriers missing characteristic peaks of ingredients?

06 June 2018 0 650 Report

The FTIR of my pegylated Nanostructured lipid carriers is not showing the characteristic peaks some of ingredients used in its preparation. Instead it is showing a broad peak of absorbance around 3300 cm-1 and around 1600 cm-1. What are possible interpretations of this?

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