Description

Guidelines for Primesep A Column

Primesep A Column a reverse-phase column with strong acidic ion-pairing groups.Improves retention of weak basic compounds by cation-exchange mechanism.

Unlike other’s we offer the largest set of materials/columns  and

Structure of Product Description:

Column Description-Column ID x Column length(mm)-Particle Diameter um – Pore Diameter (A)/Article No.

Properties for Primesep A Column

Primesep A is a reverse-phase analytical column with embedded strong acidic ion-pairing groups.

• Improves retention of weak basic compounds by cation-exchange mechanism.
• Separates acids by ion-exclusion mechanism.
• Retains neutral compounds by reverse-phase mechanism.
• All mobile phases are LC-MS and preparative chromatography compatible.

Primesep A Columns are available in all standard dimensions
Column IDs: 22 mm, 10 mm, 4.6 mm, 3.2 mm, 2.1 mm, 1 mm, 0.5 mm, 0.25 mm
Column Lengths: 250 mm, 150 mm, 100 mm, 50 mm, 25 mm, 10 mm
Particles: 10 um, 5 um
Pores: 100 A

Other Cation Exchange Columns

Cation-exchange Column Type About 50% of embedded acidic groups ionized at transition pH value Separates basic compounds
Primesep 500 : pH = 5.0 strong bases, dibases, polybases
Primesep C : pH = 3.5 strong bases, dibases
Primesep 200 : pH = 2 strong bases, dibases
Primesep P : pH = 1 weak, medium aromatic bases
Primesep 100 : pH = 1 weak, medium bases, AA, metals
Primesep A:  Ionized in all working pH weak bases, AA, metals

Start-up Methods  Check our list of Primesep A Application Methods

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