Application of HPLC with ELSD Detection for the Assessment of Azelaic Acid Impurities in Liposomal Formulation

<table> Known impurities of azelaic acid (AA)—dicarboxylic acids (I1–I9).</table>

The Scientific World Journal

Figure 2: Application of HPLC with ELSD Detection for the Assessment of Azelaic Acid Impurities in Liposomal Formulation 