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Agilent 1260 Infinity II HPLC G7111B Quaternary Gradient Pump
Product Description
The Agilent 1260 Infinity II HPLC G7111B Quat Pump is a high-performance solvent delivery system designed for analytical and semi-preparative applications, featuring:
- Flow accuracy: ±1% or 10 µL/min
- Settable flow range: 0.001 to 10 mL/min in 0.001 mL/min increments
- Flow range: 0.2 to 10.0 mL/min
- Maximum pressure: Up to 600 bar (60 MPa) suitable for high-resolution chromatography with small particle size columns
- Pump design: Dual piston in-series hydraulic system with servo-controlled variable stroke and floating pistons for virtually pulse-free solvent delivery
- Gradient capabilities: Low-pressure quaternary gradient mixer with up to four solvent channels
- Integrated components: 4-channel vacuum degasser to minimize gas interference in solvent streams
- Materials: Constructed from stainless steel and PEEK ensuring durability and chemical resistance
- Chemical compatibility: Supports a pH range from 1.0 to 12.5 for diverse mobile phases
- Dimensions and weight: 7.1 x 15.6 x 17.2 inches; 38.8 pounds
This pump enables precise solvent blending and stable flow essential for reproducible chromatographic results, tailored for applications in pharmaceuticals, food safety, and environmental testing.
Product details
| Hydraulic System | Dual piston in series pump with servo-controlled variable stroke drive, power transmission by gears and ball screws, floating pistons |
| Settable Flow Range | Set points 0.001 to 10 ml/min, in 0.001 ml/min increments |
| Flow Range | 0.2 to 10.0 ml/min |
| Flow Precision | ≤ 0.07% RSD, or ≤ 0.02 min SD whatever is greater, based on retention time at constant room temperature |
| Flow Accuracy | ± 1% or 10 µl/min, whatever is greater, pumping degassed H 2O at 10 MPa (100 bar) |
| Pressure Operating Range | Operating range up to 60 MPa (600 bar, 8700 psi) up to 5 ml/min Operating range up to 20 MPa (200 bar, 2950 psi) up to 10 ml/min |
| Pressure Pulsation | < 2% amplitude (typically < 1.0%) or < 0.3 MPa (3 bar, 44 psi), whatever is greater, at 1 ml/min isopropanol, at all pressures > 1 MPa (10 bar, 145 psi) |
| Compressibility Compensation | User-selectable, based on mobile phase compressibility |
| Recommended pH Range | 1.0 to 12.5, solvents with pH < 2.3 should not contain acids which attack stainless steel |
| Gradient Formation | Low pressure quaternary mixing/gradient capability using proprietary high-speed proportioning valve |
| Delay Volume | 600 to 900 µl, dependent on back pressure; measured with water at 1 ml/min |
| Composition Range | 0 to 100% in 0.1% increments |
| Composition Precision | < 0.2% RSD or < 0.04 min SD, whatever is greater, at 1 ml/min; based on retention time at constant room temperature |
| Integrated Degasser | Number of channels: 4 Internal volume per channel: 1.5 ml |
| Dimensions (H x W x D) | 7.1 x 15.6 x 17.2 in. (18 x 39.6 x 43.6 cm) |
| Weight | 38.8 lb. (17.6 kg) |
| Electrical Requirements | 100 to 240 V, 50/60 Hz, 80 VA |
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