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YMC-Pack PVA-Sil Semi-Prep Guard Columns

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

Semi-Prep Guard Cartridges: Features & Benefits

YMC’s Guard Column Cartridge Systems for Semi-Prep HPLC utilize cartridges of 10, 20, or 30mm inner diameters – in 10mm lengths.  Cartridges are available with a comprehensive selection including all stationary phase chemistries offered by YMC, ensuring compatibility between the guard column and the analytical column (including columns by other manufacturers).  Assembly is tool-free, simplifying cartridge replacement.

YMC Guard Column Cartridges require the use of a holder, P/N: XPCHSPW1 for 10mm I.D., P/N: XPCHSPW2 for 20mm I.D. and P/N: XPCHSPW3 for 30mm I.D.

holders

Product List

Product List

Please select the desired particle size to view a list of products.

5µm

Particle Size Pore Size Column I.D. (mm) Column Length (mm) Part Number Guards per Pack Requires Holder PriceQuantity
5µm120Å10.0 10PV12S05-0110CC 2XPCHSPW1 $258.00
5µm120Å 20.0 10 PV12S05-0120CC 2 XPCHSPW2 $640.00
5µm120Å 30.0 10 PV12S05-0130CC2 XPCHSPW3 $800.00

Holders

Guard I.D. (mm) Guard Length (mm) Description Part Number PriceQuantity
10.0 10SemiPrep Guard Cartridge HolderXPCHSPW1 $412.00
20.0 10SemiPrep Guard Cartridge Holder XPCHSPW2 $412.00
30.010SemiPrep Guard Cartridge Holder XPCHSPW3 $618.00

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