Millipore Sigma Vibrant Logo

Purospher® STAR Silica and Amino Phases

Request Information

Highly Efficient Normal-Phase Separations

Purospher STAR Silica and Amino Phases

Purospher® STAR HPLC columns based on high-purity silica are also available for normal-phase separations, and as amino-bonded phases. The benefits of these columns include excellent separation efficiency, and the absence of metallic impurities, resulting in consistently symmetrical peaks.

Purospher® STAR Si (Silica)

Purospher® STAR Si (Silica) offers the highest separation efficiency for normal-phase chromatography of low molecular weight compounds soluble in organic solvents.

Purospher® STAR NH2 (Amino)

Purospher® STAR NH2 (Amino) is primarily designed for carbohydrate analysis, with a typical mobile phase consisting of acetonitrile and water. Purospher® STAR NH2 is also suitable for use in the normal-phase retention mode.

Features and Benefits

  • Excellent separation efficiency as measured by plate count
  • Absence of metal impurities for consistently symmetrical peaks
  • Extended column lifetime


Purospher® STAR Silica and Amino Phases

Application Examples

Separation of carbohydrates on Purospher STAR NH2

Separation of Anisoles on Purospher STAR Silica

Application Notes Finder
Search for chromatography applications by analyte, column type, detection method, sorbent type or any other search term:
GC Columns

Columns, solvents, standards & CRMs for GC
View our full line of GC products at

Learn more
HPLC Workflow Solutions - Stationary Phase

HPLC Workflow Solutions

Stationary Phase

Learn More