HPLC Method for Analysis of Potassium Sorbate on Newcrom BH Column

Potassium Sorbate is a popular preservative used in a wide variety of foods, wines, and personal-care products. Potassium Sorbate can be retained and analyzed on a mixed-mode Newcrom BH column with a mobile phase consisting of water, Acetonitrile (MeCN), and Sulfuric acid (H2SO4). This analytical method can be UV detected at 210 nm with high resolution and peak symmetry.

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A , AH , B , and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.