Agilent 6890 Plus GC System

What you are buying

Most petrochemical, environmental, and food-safety methods call for the capillary GC separations the Agilent 6890 runs. Electronic pneumatic control meters the carrier gas to 0.001 psi; the heated inlet vaporizes the sample and carries it onto the column; the oven programs from 4 to 450°C; the detector measures each compound as it elutes. GenTech rebuilds, plumbs, and tests the inlets, detectors, and flow path. You receive a GC that arrives verified and ready to run your methods.

Every unit moves through the GenTech Certified process. Solution Scientists disassemble and inspect each module, replace all consumables and degraded wear components, then tune and calibrate the instrument and verify performance against OEM and published benchmarks using known reference chemicals. The instrument ships with its verification report. A certified-refurbished system gives you that performance without the capital cost or the lead time of a new purchase.

What Agilent says about this platform

Agilent positioned the 6890 Plus as a step up in performance, convenience, productivity, and regulatory compliance over the original 6890 platform. Electronic pneumatic control governs every gas pressure and flow on the system. Onboard sensors compensate automatically for changes in ambient temperature and barometric pressure. Agilent points to that same EPC as the reason the 6890 Plus needs less frequent recalibration. The system also runs on lower gas consumption, shorter setup time, and less time re-equilibrating after a setpoint change; Agilent counts it toward lower day-to-day operating cost.

What each component does

Inlet

Vaporizes the sample and delivers it to the head of the column. Split/splitless handles routine concentrations; the multimode and PTV inlets add programmed temperature for trace work and thermally fragile compounds; cool on-column places the sample directly on the column for the heaviest analytes. The 6890 holds up to two inlets.

Column oven

Programs from 4 to 450°C across 20 ramps and 21 plateaus, with fast ramping to 75°C per minute on a 120 V oven and higher on 240 V. Faster ramps and a four-minute cool-down cut cycle time at the lowest cost per sample.

Electronic pneumatic control

Meters carrier and detector gases to 0.001 psi and 0.05 mL/min and compensates for changes in ambient pressure and temperature. Precise pneumatics are the basis for the retention-time repeatability every quantitative method depends on.

Detectors

The 6890 carries up to three detectors matched to the chemistry: FID for hydrocarbons and general organics, TCD for fixed gases, micro-ECD for halogens and pesticides, NPD for nitrogen and phosphorus, and FPD for sulfur and phosphorus. Flow splitting sends one injection to two detectors for more information per run.

Capillary Flow Technology

Provides leak-free, in-oven connections for backflush, Deans-switch heart-cutting, and two-dimensional GC without cryogen. Backflush vents heavy matrix before it reaches the detector or the MS source, which protects the flow path and removes carryover.

Technical detail

*OEM specifications for brand new instrument.

Labs that run this system

The 6890 Plus is method-compatible across the techniques most regulated and research labs run every day. These are the application areas buyers ask about most.