Agilent 1260 Infinity II HPLC G7111B Quat Pump

The Agilent 1260 Infinity II HPLC G7111B Quat Pump is an advanced solution designed to enhance analytical performance with exceptional flexibility and precision. Equipped with a dual piston in-series hydraulic system, servo-controlled variable stroke drive, and floating pistons, this pump delivers virtually pulse-free, stable, and well-mixed solvent flows. Its wide settable flow range of 0.001 to 10 mL/min and maximum operating pressure of up to 60 MPa (600 bar) ensure compatibility with high-resolution applications using smaller particle size columns. Whether you are conducting routine analysis or developing sophisticated methods, the 1260 Infinity II Quat Pump offers robust capabilities tailored for diverse fields, including food safety, environmental testing, and pharmaceuticals.

Engineered for efficiency and longevity, the Agilent 1260 Infinity II G7111B integrates a low-pressure quaternary mixing gradient system, supporting up to four solvents for streamlined analysis. Its high-speed proportioning valve facilitates precise blending, while an integrated degasser with four channels ensures optimal system performance by reducing gas interference. The pump’s versatility extends to its wide pH range (1.0 to 12.5), accommodating a variety of mobile phases, and its durable materials, including stainless steel and PEEK, guarantee extended operational life with minimal maintenance. Compact yet powerful, with dimensions of 7.1 x 15.6 x 17.2 inches and a weight of 38.8 pounds, this pump is ideal for modern labs prioritizing performance, reliability, and adaptability.

Agilent 1260 Infinity II HPLC G7111B Quat Pump Specifications

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

Downloads