| Figure 2. Analysis of Four Antimicrobial Parabens Using Fast LC Operating in the High-Speed or High-Resolution Mode.
Column: 3 x 3 C18 column (33 mm x 4.6 mm i.d., 3 µm); mobile phase: 20 or 50% acetonitrile/water; flow rate: 4.0 mL/min; detection: UV @ 254 nm. Peaks: 1, methyl paraben; 2, ethyl paraben; 3, propyl paraben; 4, butyl paraben. Reprinted with permission from Reference 1. |
