Chromatography Systems (HPLC, UHPLC, GC, LCMS, GPC-SEC)

Pump condition, detector type and, on LCMS, source and vacuum health carry the most weight. Ask for run hours or injection counts and any recent service records. Confirm which detectors and columns come with the system and whether the control software licence transfers. These points tell you far more than cosmetic condition about how the instrument will perform.

Detector choice follows your analytes, from UV and diode array for chromophores to fluorescence, refractive index or mass spectrometry for specific needs. Confirm the listed detector suits your method sensitivity requirements. Some systems support more than one detector in series. Matching detector to application is central to getting usable results.

Requirements range from a stable bench and mains power for a basic HPLC to carrier gas, nitrogen and vacuum for GC and LCMS. Confirm gas supply, ventilation and any chiller or nitrogen generator dependencies with the seller. Larger systems also need stable ambient temperature. Planning these utilities before delivery avoids commissioning delays.

Many established platforms remain well supported with columns, lamps, seals and detector parts. Check part availability for the specific model before you buy, particularly for older mass spectrometers. Ask the seller whether wear parts were recently replaced. Confirmed support means an older system can serve reliably for years.

Qualifying listings can be financed, which spreads the cost of an expensive stack over an agreed term. This lets a lab build a complete workflow without one large capital outlay. You finalise the purchase directly with the seller once terms are agreed. Check the individual listing to confirm whether finance is offered.