1260 Infinity Capillary Pump
The Agilent 1260 Infinity Capillary Pump is suited for capillary LC/UV and LC/MS applications, such as bio-pharmaceutical research, where sample volumes are limited and higher sensitivity is essential. It offers better control and flexibility of low flow rates. The capillary pump uses industry leading Electronic Flow Control (EFC) for accurate and precise gradient delivery, and ensures retention time reproducibility and is ideal for capillary flow rate from 1 µL/min to 100 µL/min. It can also deliver a standard LC flow rate at up to 2.5 mL/min.
- Reliable and reproducible results - using Electronic Flow Control (EFC) that provides real-time adjustment of the flow rate throughout the analysis; offers accurate flow rates even with solvent mixtures.
- Two pumps in one – use capillary mode for optimized flow rates from 1 µL/min to 100 µL/min; use normal mode for flow rate up to 2.5 mL/min with easy hardware changes.
- Maximum performance - Retention time (RT) stability independent from column back pressure.
- Even more flexibility on solvent selection by using the built-in solvent selection valve that combines two out of four solvents for binary gradient formation, or select a different solvent for flushing the column.
- Low delay volume through the use of micro volume components.
- Low detector baseline noise and long-term stability using the included micro vacuum degasser.
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Agilent 1260 Infinity Capillary Pump |
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Hydraulic system |
Two dual pistons in series, with proprietary servo-controlled variable stroke drive, floating pistons and active inlet valve, solvent selection valve and electronic flow control (EFC) for flow rates up to 100 µL/min |
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Settable column flow range |
0.01 – 20 µL/min, 0.01 – 100 µL/min (with extended flow range kit), 0.001 – 2.5 ml/min (electronic flow control bypassed) |
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Recommended column flow range |
1–20 µL/min, 10–100 µL/min (with extended flow range kit) |
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Column flow precision |
< 0.7 % RSD or 0.03 SD, whatever is greater (typically < 0.4 % RSD or 0.02 SD), at 10 µL/min and 50 µL/min column flow (based on RT, default settings) |
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Composition precision |
< 0.2 % SD at 10 µL/min, 50 µL/min (with extended flow range kit) and 1 ml/min (default settings) |
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Pressure range |
up to 400 bar system pressure |
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Delay volume |
Typically 3 µL from EFC to pump outlet for flow rates up to 20 µL/min; 12 µL from EFC to pump outlet for flow rates up to 100 µL/min; 180–480 µL (system pressure dependant) without mixer for flow rates up to 2.5 ml/min; mixer delay volume 420 µL |
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pH range |
1.0 to 8.5 recommended |
