Description
Agilent 1260 Infinity II G7111B Quaternary Pump Overview
Agilent 1260 Infinity II G7111B Quaternary Pump is a high‑pressure, low‑pulsation HPLC pump designed for Agilent 1260 Infinity II liquid chromatography systems. It delivers precise solvent blending and stable flow performance for isocratic and gradient applications, supporting analytical and semi‑preparative workflows.
The G7111B quaternary pump provides a wide flow range from 0.001 to 10 mL/min and operates at pressures up to 600 bar, enabling the use of small‑particle columns for high‑resolution separations. Its low‑pressure quaternary mixing system supports automated blending of up to four solvents, making it well suited for method development and routine analysis.
With an integrated degassing unit, servo‑controlled dual‑piston drive, and compatibility with Agilent OpenLab and ChemStation software, the Agilent Infinity II G7111B Quaternary Pump offers reliable, reproducible solvent delivery for demanding HPLC applications.
This refurbished Agilent 1260 Infinity II G7111B Quaternary Pump has been fully tested and verified to be in proper working condition by Alliant Scientific.
Includes:
- Agilent 1260 Infinity II G7111B Quaternary Pump
- Power Cable
- 30 Day Warranty
Optional:
- Premium refurbishment available with extended warranty options
Disclaimer:Â All brand names and trademarks are the property of their respective owners and are used for identification only. We are not an authorized dealer. Software, if included, is not transferable or upgradable.
Technical Specifications
| Quaternary Pump (G7111B) | |
| Pump Type | Low-pressure quaternary pump |
| Solvent Channels | 4 |
| Flow Range | 0.001 – 10 mL/min |
| Maximum Pressure | 600 bar (up to 5 mL/min) |
| Flow Precision | ≤ 0.07 % RSD |
| Flow Accuracy | ± 1 % or 10 µL/min |
| Gradient Formation | Low-pressure quaternary mixing |
| Delay Volume | 600 – 900 µL (pressure dependent) |
| Integrated Degasser | Yes, 4-channel |
| Recommended pH Range | 1.0 – 12.5 |
| Dimensions (H × W × D) | 180 × 396 × 436 mm (7.1 × 15.6 × 17.2 in) |
| Weight | 17.6 kg (38.8 lb) |
| Power Requirements | 100 – 240 V, 50/60 Hz, 65 W |
Additional information
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Key Features
- Quaternary low‑pressure solvent mixing (4 channels)
- Flow range: 0.001 – 10 mL/min
- Maximum pressure: 600 bar
- Dual‑piston, servo‑controlled drive system
- Integrated 4‑channel degasser
- Low pulsation for stable baselines
- Compatible with fast LC and UHPLC methods
- Designed for Agilent 1260 Infinity II systems
- Full software control via OpenLab and ChemStation
Applications
- Pharmaceutical analysis
- Method development and validation
- Environmental testing
- Food and beverage analysis
- Academic and research laboratories
- Routine and high‑throughput HPLC workflows
- Agilent InfinityLab Quaternary Pumps User Manual (G7111B)
FAQ
A: The G7111B is a low‑pressure quaternary HPLC pump designed for solvent blending using up to four mobile phases.
A: The pump supports flow rates from 0.001 to 10 mL/min and pressures up to 600 bar (up to 5 mL/min).
A: The G7111B supports four solvent channels for automated quaternary gradient formation.
A: Yes, the pump includes an integrated 4‑channel degassing unit.
A: Yes, it is specifically designed for use with Agilent 1260 Infinity II LC systems.
A: The pump is fully controlled through Agilent OpenLab and ChemStation software.











