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Analytical: YMC-Pack PVA-Sil

Normal-Phase Alternative to Silica

YMC-Pack PVA-Sil, which possesses a polyvinyl alcohol (PVA) surface chemistry, is an excellent alternative to silica gel or other polar bonded phases which are used in normal-phase chromatography.  In many situations, it exhibits better performance characteristics with a unique selectivity, and can often resolve compounds that behave poorly on bare silica.  The alcohol functionality present on PVA-Sil is better suited for troublesome compounds, such as organic bases, that acidic silanols present in unbonded silica.  Since PVA-Sil is a bonded stationary phase, it can be washed with solvents of any polarity from hexane to water, without altering the surface activity.  Therefore; selectivity, retention, and resolution are reproducible regardless of the column’s previous history.  This is not true of bare silica, which easily becomes completely deactivated following the introduction of even a small quantity of water.

Specifications

YMC-Pack PVA-Sil: Features & Benefits

Specifications
Base Material: Silica
Stationary Phase: Polyvinyl alcohol(USP L24)
Particle Size: 5µm
Pore Size: 120Å,
Bonding: Monomeric
pH Range: 2-7.5

Polyvinyl Alcohol Functionalized Silica

YMC-Pack PVA-Sil is prepared from a 5µm, 120Å silica support which is bonded with a monomolecular polymer coating of vinyl alcohol. The polymerized PVA completely covers both external and internal surfaces of the silica support, protecting it against aggressive, high pH buffers, and solvents.

  • Bonded phase alternative to silica for normal-phase applications
  • Vinyl alcohol polymerized silica support
  • Consistent surface activity, unaffected by water
  • Excellent for packed column supercritical fluid chromatography

Applications

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Product List

Product Table

Particle Size Pore Size Column I.D. (mm) Column Length (mm) Part Number PriceQuantity
5µm120Å2.0 50 PV12S05-0502WT $386.00
5µm120Å2.0 100 PV12S05-1002WT $556.00
5µm120Å2.0 150 PV12S05-1502WT $618.00
5µm120Å2.0 250 PV12S05-2502WT $703.00
5µm120Å 3.0 50 PV12S05-0503WT $399.00
5µm120Å 3.0 100 PV12S05-1003WT $555.00
5µm120Å 3.0 250 PV12S05-2503WT $790.00
5µm120Å 4.0 50 PV12S05-0504WT $399.00
5µm120Å 4.650 PV12S05-0546WT $418.00
5µm120Å 4.6 100 PV12S05-1046WT $648.00
5µm120Å 4.6 150 PV12S05-1546WT $719.00
5µm120Å 4.6 250 PV12S05-2546WT $828.00

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