Page 36 - Shimadu Consumables Catalog

UHPLC/HPLC Columns

Shim-pack VP Series

Shim-pack VP series is designed for the development and validation of analytical methods.
Shim-pack VP-ODS Shim-pack VP-C8 Shim-pack VP-Phenyl
Particle Size (μm) 5 5 5
Pore Size (nm) 12 12 12
Surface Area (m2/g) 410 410 410
Carbon Loading 20% 12.5% 12.3%
Pressure Tolerance (MPa) Approx. 20 Approx. 20 Approx. 20
Pore Volume (mL/g) 1.25 1.25 1.25
End-capping Yes Yes Yes
Bonding Type Monomeric Monomeric Monomeric
pH Range 2 - 7.5 2 - 7.5 2 - 7.5
USP Code L1 L7 L11

Strict Manufacturing Uniformity

Shim-pack VP series ensures high column-to-column performance reproducibility, which is ideal for method development and
validation. Silica-bases, surface treatment and packing procedures are subjected to a strict array of quality criteria tests and
controlled respectively. Each column is delivered together with Certificate of Compliance and Column Performance Report.

Comparison of reproducibility between three batches of silica-based materials

Balance of Column Efficiency and Column Backpressure

Shim-pack VP series achieves a higher column efficiency
while maintaining low pressure. It provides superior
performance shown by NTP (Number of Theoretical Plates)
per 1MPa.

Column Size: 4.6 x 150 mm, Mobile Phase: Methanol/Water=70/30,
Flow Rate: 1.0 mL/min., Sample: Naphthalene

Pg A-32