Agilent 1290 Infinity Series HPLC Quaternary Pump (G4204A) (Bazaar)

The Agilent 1290 Infinity Quaternary Pump (G4204A) is a state-of-the-art component designed for high-performance liquid chromatography (HPLC) and ultra-high-performance liquid chromatography (UHPLC) applications. This pump is highly versatile, offering precise and reliable solvent delivery across a wide range of flow rates and pressures, making it ideal for analytical laboratories handling diverse sample matrices. Its advanced design includes features such as a built-in 4-channel vacuum degasser, dual-piston pumping technology, and a multi-channel gradient valve (MCGV) for low-pressure quaternary mixing. These ensure outstanding flow stability, mixing efficiency, and detector sensitivity, especially at low flow rates. The G4204A is engineered to support modern laboratories with user-friendly interfaces, advanced diagnostics, and easy maintenance options, fulfilling Good Laboratory Practice (GLP) compliance.

Technical Specifications

Hydraulic System

• Dual-piston pump in series with servo-controlled variable stroke design.
• Power transmission via ball screws ensures smooth and precise motion control of pistons.

Performance

• Flow range: 0.001–5 mL/min (settable in 0.001 mL/min increments).
• Flow precision: ≤ 0.07% RSD or 0.01 min SD (whichever is greater).
• Flow accuracy: ±1% or ±10 µL/min (whichever is greater).
• Maximum operating pressure: 120 MPa (1200 bar) at ≤2 mL/min, 80 MPa (800 bar) at ≤5 mL/min.
• Pressure pulsation: <1% amplitude or <0.5 MPa (5 bar), whichever is greater.

Mixing and Gradient Formation

• Low-pressure quaternary mixing using MCGV.
• Standard delay volume: < 350 µL (optional Jet Weaver: < 500 µL).
• Composition range: 0–100% with recommended 1–99%.

Degassing Unit

• Integrated 4-channel vacuum degasser.
• Internal volume per channel: 1.5 mL.

Connectivity and Control

• Supported software: Agilent ChemStation, OpenLAB, MassHunter.
• Local control: Agilent Instant Pilot (G4208A).
• Communication interfaces: CAN, RS232, APG remote, and LAN.

Physical Specifications

• Dimensions (H × W × D): 200 × 345 × 435 mm.
• Weight: 15.2 kg.
• Operating temperature range: 4–55°C.

Safety and GLP Features

• Leak detection and safe waste handling.
• Early Maintenance Feedback (EMF) for tracking seal wear and solvent usage.
• Compliance with safety standards: IEC, CSA, UL.

Maintenance

• Easy access to pump components for seal replacement, valve cleaning, and filter maintenance.
• Optional seal wash function for enhanced longevity in buffer applications.

This combination of technical precision and user-focused design ensures the Agilent 1290 Infinity Quaternary Pump remains a leader in HPLC/UHPLC systems.