Analysis of Fatty Acids with a Charged Aerosol Detector (DS-613)

Several fatty acids were separated by RSpak DS-613, a polymer-based reversed phase column, and detected by a charged aerosol detector (CAD). By using CAD, caprylic acid can be analyzed without an interfering influence from the earlier-eluting solvent peaks.

Sample: 20 µL

  1. 1.Caprylic acid CH3(CH2)6COOH 50 μg/mL
  2. 2.Myristic acid CH3(CH2)12COOH 50 μg/mL
  3. 3.Linoleic acid C17H31COOH 50 μg/mL
  4. 4.Palmitic acid CH3(CH2)14COOH 50 μg/mL
  5. 5.Stearic acid CH3(CH2)16COOH 100 μg/mL
Column
：Shodex RSpak DS-613 (6.0 mm I.D. x 150 mm)
Eluent
：H2O/CH3CN=10/90
Flow rate
：0.8 mL/min
Detector
：Charged aerosol
Column temp.
：40 ℃

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