Ordering information High Pressure Dispenser High Pressure Dispenser unit (HPD™) Regulatory compliance Applied safety standards HPD™ dual unit NTRL certificate of compliance with UL and CSA standards All products are for Research Use Only (RUO), unless specifically labeled otherwise. Functional ± 1% (for volumes > 0.3 mL) ± 2% (for volumes < 0.3 mL) Volume precision Syringe flow 0.1 - 10 mL/min (Dispense and Aspirate) Flow accuracy Flow precision Flow ripple Flow back pressure Pressure sensor Pressure accuracy Pressure precision Dispense Flow rate 0.1 - 1 mL/min in 0.01 mL/min steps 1 - 10 mL/min in 0.1 mL/min steps Aspirate Flow rate 0.1 - 10 mL/min in 0.1 mL/min steps Volume range 0 - 0.1 mL in 0.001 mL steps 0.1 - 1mL in 0.01 mL steps 1 - 10 mL in 0.1 mL steps 10 - 100 mL in 1.0 mL steps 100 - 990 mL in 10 mL steps Selectable Solvents Solvent selection manifold (2) In right panel of HPD1 only, for connecting 6 extra solvents per SSM Port indication around ports via LEDs Ratio accuracy 3% (47% < Measurement < 53%) (Liquid Viscosity ratio < 3) Ratio precision < 2 % RSD (Liquid Viscosity ratio < 3) Ratio precision < 2 % RSD (Liquid Viscosity ratio < 3) Aspirate Flow rate 4 mL/min (fixed) Pressure safety limit Pressure read-out Wetted materials SS316, Teflon, Tefzel, Kalrez, PE, PEEK Spark Holland B.V. P.O. box 388 7800 AJ Emmen The Netherlands Specifications are subject to change Head Office: P. de Keyserstraat 8 7825 VE Emmen The Netherlands BETTER SAMPLE CARE Volume accuracy Spark Holland introduces HPD™ BETTER SAMPLE CARE

HPD™ A syringe based dispenser resisting HPLC pressure Designed for volumetric on-line reagent delivery Traditional volumetric dispensers are designed for pipetting reagents or samples into vials or wells at ambient pressure or a few bar at most. On-line volumetric reagent delivery however, may require the ability to introduce reagents into a system with a high working pressure. The HPD™ was originally designed by Spark for SPE solvent delivery in on-line SPE-LC systems, but other applications are easy to imagine. Think of pre-column reagent addition for on-line derivatization in HPLC, post-column...