HPLC Method for Analysis of Benzalkonium Chloride on Primesep SB Column

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Chromatogram

Description

· Separation type: Liquid Chromatography Mixed-mode · Method for Analysis of Benzalkonium chloride on Primesep SB by SIELC Technologies

Benzalkonium chloride, also known as Zephiran or Alkyldimethylbenzylammonium chloride, is a positively charged surfactant often used as a pharmaceutical preservative and as an antiseptic. Benzalkonium Chloride can be retained on a mixed-mode stationary phase Primesep SB column with embedded strong basic ion-pairing groups, using a gradient analytical method with a simple mobile phase of water, Acetonitrile (MeCN), and a Sulfuric acid (H2SO4) ionic modifier.  This analysis method can be UV detected at 210 nm with high resolution and peak symmetry.

Method Parameters

Mobile PhaseGradient MeCN – 30-70%, 10 min
BufferH2SO4 – 0.2%
Flow Rate0.5 ml/min
DetectionUV 210 nm
Peak Retention Time5.32, 6.93
Class of CompoundsDrug
Analyzing CompoundsBenzalkonium chloride

HPLC Column Used

Primesep SB, 3.2 x 100 mm, 5 µm, 100 A, dual ended