Agilent 5977B MSD

What you are buying

Environmental, forensic, and food-safety methods that identify and confirm compounds by mass run on the GC-MS the Agilent 5977 MSD delivers. The gas chromatograph separates the mixture; the sample crosses a heated transfer line into the source; the source ionizes each compound; the quadrupole scans the mass range or watches selected ions for trace quantitation. GenTech rebuilds and tests the GC, the source, and the analyzer, then verifies the system end to end. You receive a GC-MS that arrives tuned 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 built the 5977B around a heated hyperbolic quadrupole mass filter covering 1.6 to 1,050 u, with scan speeds up to 20,000 u per second depending on the source installed. A choice of ion sources, High-Efficiency, stainless steel, inert, or extractor, covers electron ionization along with positive and negative chemical ionization. The Triple-Axis Detector sits off-axis from the quadrupole to cut noise from photons, hot neutrals, and stray electrons. The high-energy dynode runs at -10,000 volts for EI and PCI or +10,000 volts for NCI. The electron multiplier gain is adjustable from 0 to -3,000 volts DC as the horn ages. Cylindrical aluminum radiators house the ion source and mass filter to control heat distribution across the analyzer. Agilent rates mass accuracy on a 100-picogram-per-microliter OFN standard, scanning 50 to 300 u, to within about 5 parts per million of the reference ion, with spectral accuracy above 99 percent on the same standard. The 5977B pairs with the 7890B or 7820 GC and runs MassHunter acquisition software, with ChemStation available for data analysis.

What each component does

Transfer line

Carries the separated compounds from the GC oven into the mass spectrometer at controlled temperature, with no cold spots to lose heavy analytes.

Ion source

Ionizes each compound as it elutes. Electron ionization produces the reproducible, library-searchable spectra environmental and forensic methods rely on; chemical ionization preserves the molecular ion for confirmation.

Mass analyzer

The quadrupole filters ions by mass. It scans a full spectrum for identification or holds on selected ions for the lowest detection limits in quantitation.

Technical detail

*OEM specifications for brand new instrument.

Labs that run this system

The 5977B MSD is method-compatible across the techniques most regulated and research labs run every day. These are the application areas buyers ask about most.