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Preservatives

  1. Methylparaben
  2. Ethylparaben
  3. Propylparaben


Column: Ultrasphere XL, C-18, 4.6 x 75mm
Order No.: 931050
Mobile Phase: H2O:methanol (30:70)
Elution Conditions: Isocratic
Flow Rate: 1.5mL/min
Detector: UV 254nm, 0.1AUF
Injection Vol.: 20µl
Sample Prep: 1mg of each component was dissolved in 1mL of mobile phase and injected directly onto the column

HPLC Chromatograms

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