Abstract

A new method for the determination of the active principle dexketoprofen (DKP) in a hydrogel using near infrared spectrometry was developed. A transflectance module allows the gel spectrum to be recorded with no sample pretreatment. Also, the PLS calibration method used allows low contents of the active principle in such a highly absorbing matrix as water/ethanol to be determined. The proposed method was validated and found to be an effective choice for the intended purpose.

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