UHPLC/HPLC Columns
Shim-pack XR Series
Shim-pack XR Series Columns Offer Versatility and Fast Analysis Shim-pack XR Series columns use a 2.2 µm packing particle size and offer a skillful balance between resolution efficiency and pressure. An XR Series column provides resolution equivalent to a general-purpose column with 5 µm packing particle size (Shim-pack VP-ODS), but significantly reduces the analysis time. The pressure on the column under many analysis conditions does not exceed 35 MPa. Consequently, ultrafast analysis can be comfortably performed on an existing instrument.
Shim-pack XR-ODS
Shim-pack XR-C8
Shim-pack XR-Phenyl
Shim-pack XR-SIL
Particle Size (µm)
2.2
2.2
2.2
2.2
Pore Size (nm)
12
12
12
12
Surface Area (m2/g)
340
340
340
340
Carbon Loading
18%
11%
11%
–
Pressure Tolerance (MPa)
35
35
35
20
Pore Volume (mL/g)
1.05
1.05
1.05
1.05
End-capping Bonding Type
Yes
Yes
Yes
– – –
Monomeric
Monomeric
Monomeric
pH Range USP Code
2 - 7.5
2 - 7.5
2 - 7.5
L1
L7
L11
L3
Shim-pack XR-ODS Permits Simple Switching from Conventional Analysis The two chromatograms to the right show differences in analysis times when using different columns. The lower chromatogram is the result of analysis using a Shimadzu Shim-pack VP-ODS general-purpose column. The upper chromatogram is from analysis with a Shim-pack XR-ODS fast analysis column. As both Shim-pack VP-ODS and Shim- pack XR-ODS offer identical resolution properties, Shim-pack XR-ODS maintains the resolution while significantly reducing analysis times.
For more information of smooth transfer of methods from high-speed analysis to conventional analysis, please refer to page A-34
Shim-pack XR Series Comprehensive Product Range In addition to the versatile Shim-pack XR-ODS that is bonded with the C18 group, the comprehensive Shim-pack XR Series product range includes the Shim-pack XR-C8 that is bonded with the C8 group to give different retention behavior to ODS, Shim-pack XR-Phenyl that is bonded with the phenylpropyl group, and the normal-phase Shim-pack XR-SIL silica column that achieves higher speeds.
Pg A-28
Made with FlippingBook Digital Proposal Creator