Determination of N-acetylglucosamine in cosmetic formulations and skin test samples by hydrophilic interaction liquid chromatography and UV detection

- A new HILIC-UV method for the determination of N-acetylglucosamine is presented.
- The HPLC method is validated and applied to cosmetics and skin test strips.
- N-acetylglucosamine quantitation by HILIC-UV is suitable for cosmetics control.
- The analysis of skin test strips evidences the method specificity and sensitivity.