The InfinityLab LC Series 1260 Infinity II from Agilent Technologies Inc. - mid-range HPLC workhorse with flexible solvent handling

Reviewed: ad hoc news Bestseller & Flagship desk. Edited and checked on 2026-06-22, 21:04. Details in the imprint.

The InfinityLab LC Series 1260 Infinity II from Agilent Technologies Inc. sits on the lab bench with a quiet hum, the autosampler arm clicking rhythmically through tiny glass vials. For analytical chemist Maria Santos, that steady sound means hundreds of samples moving on time. The white stack looks tidy, almost like modular hi-fi gear, but its job is separating complex mixtures at up to 600 bar.

Pressure, pumps and throughput

Agilent positions the InfinityLab LC Series 1260 Infinity II as a mid-range high performance liquid chromatograph with a maximum pressure of 600 bar and flow rates up to 10 mL/min, covering routine HPLC and many UHPLC methods. The official product page describes several configurations, including quaternary and binary pump options. That flexibility allows labs to switch between gradient methods without swapping out hardware.

According to Agilent, system carryover can be as low as 10 parts per million when configured with the multi-wash option, which matters when analysts chase trace-level impurities in pharmaceuticals or food. The sampler on Maria's unit closes with a solid, tactile click that reassures her each vial is sealed and ready, even during long overnight sequences.

User interface and everyday handling

Product manager Helen Stimson emphasizes that the 1260 Infinity II keeps the familiar Agilent LC look-and-feel while integrating into the newer InfinityLab ecosystem, so existing users do not have to relearn workflows. The front-panel display is bright and simple, with large status icons that can be read across a crowded lab. For technicians in lab coats and gloves, the physical keys remain easier to jab than a cramped touchscreen.

The system can be controlled via Agilent OpenLab CDS or other chromatography data systems, allowing method templates and sequences to be reused across multiple instruments in regulated environments. An optional integrated column compartment keeps up to three columns plumbed and ready, reducing the need to manually reconfigure the system for different assays.

Solvent flexibility and lab footprint

One attraction of the 1260 Infinity II platform is its ability to handle up to four solvents in quaternary configuration, useful for method scouting and complex gradients in pharmaceutical development. Labs that standardize on binary systems can instead opt for higher gradient precision at the expense of that extra flexibility. The system stack is relatively compact, freeing bench space for balances, pH meters and other daily tools.

Noise and heat levels are modest, so the unit can sit in an open lab without becoming an annoyance for staff working eight-hour shifts. When the pump starts a high-pressure gradient, you feel a faint vibration through the benchtop, but conversations at the hood remain easy.

Maintenance, uptime and service

Agilent underlines tool-free maintenance on key flow-path components, designed so users can change pump seals and purge valves quickly, limiting downtime. Clear front access reduces the need to slide units around or disconnect multiple modules. In regulated labs, that speed matters because every hour of downtime ripples through validation and release schedules.

Third-party reviewers note that consumables like inlet filters, lamps and pump seals are widely available, and long-term total cost of ownership depends heavily on local service contracts and preventive maintenance discipline. For Maria's team, a quarterly check of pump performance and injector precision is now routine, logged directly into their quality system.

How it fits in Agilent's LC lineup

The 1260 Infinity II slots between simpler education-focused LC units and Agilent's higher-pressure 1290 Infinity II series, which addresses full UHPLC at up to 1300 bar for demanding separations. That positioning targets QC and method-transfer labs that need robustness more than bleeding-edge speed. In many pharma plants, the 1260 platform becomes the "everyday" system that runs stability samples and raw-material checks.

Agilent highlights backward compatibility with well-known 1100 and 1200 series LC methods, allowing companies to migrate validated procedures with minimal requalification. For quality managers, that consistency reduces regulatory headaches when moving decades-old methods to newer hardware.

Company context and shares

Agilent Technologies Inc. has long made chromatography a core pillar of its life-science and chemical-analysis portfolio, alongside mass spectrometry and spectroscopy instruments. According to recent trading data, Agilent Technologies Inc. shares (ISIN US00846U1016) are listed on the New York Stock Exchange in US dollars.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.