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Chromatogram

Description

Propyl 4-hydroxybenzoate or propylparaben is a very useful compound in cosmetics and often used as a preservative in lotions and creams. The reverse-phase column Legacy L1 was used to retain propyl 4-hydroxybenzoate. Comparisons to Phenomenex columns are available upon request.

Method Parameters

Mobile PhaseMeCN – 430%
BufferNaH2PO4 pH 2.5 – 10 mM
Flow Rate1.0 ml/min
DetectionUV, 210 nm
Class of CompoundsPreservative,  Hydrophobic, Ionizable
Analyzing CompoundsPhenoxymethylpenicillin

HPLC Column Used

Legacy L1, 4.6×250 mm, 5 µm, 100A