When delivering smaller particles through the liquid mobile phase of a HPLC unit, the liquid must be forced through the column under pressure. The purpose of an HPLC pump, also called a solvent delivery system, is to force the liquid through the system while maintaining a specific flow rate. HPLC pumps can be broadly categorized into three types: syringe pumps that provide pulseless delivery, reciprocating or piston pumps that push the mobile phase through with a series of pistons, and pneumatic pumps that use gas to pressurize the mobile phase. Reciprocating pumps are most common due to their good pressure generation, constant flow rate, and small footprint, but each type of pump has its pros and cons that should be weighed when purchasing. Other things to look out for when selecting a pump include the instrument’s compatibility with different solvents, low dead volume to minimize issues with solvent changeover, delivery method (either isocratic or gradient), as well as things like price, ease of use, and lifetime.
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JASCO
- HPLC and Preparative HPLC Pumps
- PU-4080i: up to 10 mL/min (conventional to semi-prep, up to 10 mm I.D. column)
PU-4086: up to 20 mL/min (conventional to semi-prep, up to 20 mm I.D. column)
PU-4087: up to 50 mL/min (to semi-prep, 20 to 30 mm I.D. column)
PU-4088: up to 150 mL/min (up to prep, from 20 to 50 mm I.D. column, up to 30 mm I.D. SFC column) - PU-4080i: 250 Bar (25 MPa)
PU-4086/4087/4088: 500 Bar (50 MPa)
JASCO
- HPLC and RHPLC Pumps
- PU-4180: up to 10 mL/min (conventional to semi-prep, up to 10 mm I.D. column)
PU-4185: up to 4 mL/min (semi-micro to conventional, 1.5 to 4.6 mm I.D. column) - 700 Bar (70 MPa)
JASCO
- HPLC, RHPLC, and UHPLC Pumps
- PU-4285: up to 4 mL/min (semi-micro to conventional, 1.5 to 4.6 mm I.D. column)
- 1,300 Bar (130 MPa)
JASCO
- SFC (Analytical and Preparative) Pumps
- PU-4380: up to 10 mL/min (conventional to semi-prep, up to 10 mm I.D. column)
PU-4386: up to 20 mL/min (conventional to semi-prep, up to 20 mm I.D. column)
PU-4387: up to 50 mL/min (to semi-prep, 20 to 30 mm I.D. column)
PU-4388: up to 150 mL/min (up to prep, from 20 to 50 mm I.D. column, up to 30 mm I.D. SFC column) - 500 Bar (50 MPa)
JASCO
- Compact HPLC Pumps
- PU-4580: 0.5 µL to 10 mL/min
PU-4585: 0.05 to 4 mL/min
PU-4586: 0.5 to 20 mL/min
PU-4587: 5 to 40 mL/min - PU-4580: 50 MPa from 0.5 µL to 6 mL/min / 35 MPa from 6 mL/min to 10 mL/min
PU-4585: 50 Mpa from 0.05 to 3 mL/min / 35 MPa from 3 to 4 mL/min
PU-4586: 50 MPa from 0.5 to 10 mL/min / 40 MPa from 10 to 15 mL/min / 25 MPa from 15 to 20 mL/min
PU-4587: 15 MPa
Shimadzu
- Series-Type Double Plunger
- 0.01 to 150.0 mL/min
- 42.0 Mpa
Shimadzu
- Inquire
- 0.1 uL/min to 10 mL/min
- 130 Mpa
Shimadzu
- Inquire
- 0.1 uL/min to 10 mL/min
- 70 Mpa
Shimadzu
- Inquire
- 0.1 uL/min to 10 mL/min
- 44 Mpa
Shimadzu
- Inquire
- 0.1 uL/min to 10 mL/min
- 130 Mpa
Shimadzu
- Inquire
- 0.1 uL/min to 10 mL/min
- 105 Mpa
Select up to 5 products from above to compare or request more information.
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