Finnigan equipment
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Finnigan is an American mass spectrometry and laboratory instrument manufacturer founded in 1967, when Robert E. Finnigan and co-workers established Finnigan Instrument Corporation to commercialize quadrupole GC/MS systems. The company operated from Palo Alto and later San Jose, California, and was acquired by Thermo Instrument Systems in 1990, after which it ran as Thermo Finnigan and is now part of Thermo Fisher Scientific. Its product history covers gas chromatography mass spectrometry systems, liquid chromatography mass spectrometry systems, ion trap instruments, and triple quadrupole platforms. On Questpair, 50 used Finnigan items are listed by verified suppliers and distributors across 6 countries.
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Finnigan product list
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About Finnigan
Finnigan is an American mass spectrometry and laboratory instrument manufacturer founded in 1967. Robert E. Finnigan and co-workers founded Finnigan Instrument Corporation that year to commercialize quadrupole GC/MS systems, after leaving Electronic Associates Inc. The company was based in Palo Alto, California, and later in San Jose. In 1990 it was acquired via Thermo Instrument Systems, after which the brand operated as Thermo Finnigan and is now part of Thermo Fisher Scientific. Its primary categories are mass spectrometers, gas chromatography mass spectrometry systems, liquid chromatography mass spectrometry systems, ion trap instruments, and triple quadrupole systems. On Questpair, used Finnigan equipment is listed by verified suppliers and distributors.
These instruments sit at the centre of modern analytical chemistry, and Finnigan's work in mass spectrometry runs straight into the life sciences. A triple quadrupole platform such as the TSQ Quantum is a standard tool for targeted quantitative LC-MS, the method behind much of today's molecular diagnostics and clinical screening. Ion trap systems such as the LCQ and LTQ perform tandem mass spectrometry for structural work, which places them in proteomics laboratories identifying and sequencing peptides and in metabolomics studies mapping small-molecule profiles. The LTQ Orbitrap added high-resolution accurate-mass measurement to that linear ion trap, extending the same platform into high-confidence protein identification and intact-protein analysis. Gas chromatography systems in the GCQ and DSQ lines handle volatile and semi-volatile compounds, work that reaches from environmental screening into metabolite analysis. Across these lines the common thread is quantification and identification of molecules by mass, the measurement that underpins so much of genomics-adjacent and proteomics research.
Finnigan mass spectrometer lines
The named product history is what anchors the catalogue. On the ion trap side, the LCQ was a three-dimensional trap designed for LC-MS, and the LTQ was its linear-trap successor; the earlier INCOS data systems belong to the same lineage of trap-based instruments. On the triple quadrupole side, the TSQ 7000 was an established platform before the TSQ Quantum series carried the triple-quad approach forward for high-sensitivity targeted work. The LTQ Orbitrap combined a linear ion trap with Orbitrap mass analysis for high-resolution measurement. For gas chromatography mass spectrometry, the GCQ and DSQ lines covered trap and single-quadrupole detection respectively. Knowing which of these families a listing belongs to tells you most of what you need about its intended use, because the families differ by analyser type rather than by cosmetic model number.
What is listed on Questpair?
The Questpair catalogue for this brand holds 50 items from 6 verified suppliers and distributors across 6 countries. 100 percent of the listings are used. Prices range from EUR 42 to EUR 13.377. The average listing price is EUR 2.814. That range reflects a catalogue that mixes individual parts and components with complete spectrometry systems, so the figure at the top and the figure at the bottom describe genuinely different purchases rather than a narrow band around the average.
For documentation, a buyer can contact Questpair and specialists respond within one hour. Parts for these platforms can be sourced via Questpair, which matters for discontinued Finnigan and Thermo Finnigan instruments where keeping an existing system running often depends on spares. A warranty is often possible and is arranged in consultation for the specific listing, so the terms attach to the individual unit rather than to the brand as a whole. Because every Finnigan listing here is used, the condition described in each listing is the detail that decides the purchase.
Questpair review of Finnigan
Our take based on listings data and supplier feedback
Finnigan occupies a specific place in analytical instrumentation history: the company commercialized quadrupole GC/MS at a point when the technique was moving out of research labs and into routine analysis. That heritage shapes what turns up on the secondary market today, and the Questpair catalogue reflects it. The listings concentrate on the mass spectrometry platforms the brand was known for rather than a scattered mix of general lab gear, which makes the catalogue coherent for anyone specifically after a Finnigan or Thermo Finnigan system.
The first thing worth noting is the breadth of the product heritage behind these listings. Finnigan's named lines, the LCQ three-dimensional ion trap for LC-MS, the LTQ linear ion trap, the TSQ Quantum and earlier TSQ 7000 triple quadrupoles, the LTQ Orbitrap, and the GCQ and DSQ gas chromatography systems, each served a different analytical need. A triple quadrupole such as the TSQ series is built for targeted quantification and is the workhorse behind much quantitative LC-MS work, while an ion trap like the LCQ or LTQ is suited to structural work and tandem experiments. A buyer browsing the catalogue is therefore not choosing between near-identical boxes but between instrument classes with distinct operating principles, and knowing which Finnigan line matches the intended method matters more here than the brand name alone.
The second point is sourcing. The Finnigan listings come from 6 verified suppliers and distributors spread across 6 countries. For discontinued platforms, where a single seller can dictate both availability and condition, having more than one supplier in the catalogue gives a buyer something to compare against rather than a take-it-or-leave-it listing. That is a practical advantage when the instrument itself is no longer in production and the pool of available units is finite.
The third point concerns condition and price, and here the data is unambiguous. 100 percent of the listings are used. There is no new Finnigan equipment in the catalogue, which is consistent with a brand whose current identity sits inside Thermo Fisher Scientific. Prices run from EUR 42 to EUR 13.377. That spread is wide because it covers very different things: at the lower end sit parts, components and accessories, and at the upper end sit complete, functioning mass spectrometers. A buyer reading only the average, which sits at EUR 2.814, would miss that the catalogue is not a single product tier but a range from spares to full systems.
Taken together, the catalogue suits two kinds of buyer well: a lab running an existing Finnigan or Thermo Finnigan method that needs a matching unit or spare parts to keep it going, and a lab willing to adopt a proven older platform at used pricing. Because every unit is used, the condition of each specific listing is the variable that matters most, and warranty on any individual unit is arranged in consultation for that listing.

**Quadrupole and ion trap heritage**
Finnigan's catalogue on Questpair centres on the mass spectrometry lines the company built its reputation on, from the LCQ and LTQ ion traps to the TSQ triple quadrupole series.
**Legacy instruments from multiple suppliers**
Used Finnigan systems are listed by 6 verified suppliers and distributors across 6 countries, giving buyers of older Thermo Finnigan platforms more than one sourcing route.
**Full used inventory with a wide price band**
Every Finnigan listing in the catalogue is used, and prices run from EUR 42 to EUR 13.377, spanning single components through to complete mass spectrometers.
Frequently asked questions
Where can I get manuals and documentation for Finnigan instruments?
Contact Questpair and specialists respond within one hour with documentation requests for a specific listing. Because these platforms span several generations, the paperwork tends to be tied to the individual unit rather than available as a single generic manual.
How much does a used Finnigan mass spectrometer cost?
Across the Questpair catalogue, prices run from EUR 42 to EUR 13.377, with an average of EUR 2.814. The spread is wide because the listings include both individual parts and complete spectrometry systems, so the two ends describe very different purchases.
What is the difference between refurbished and used Finnigan equipment?
A used unit is sold in its current working condition as described in the listing, while a refurbished unit has been reconditioned before sale. Both are listed below the price of new equipment, and the condition note in each listing is the detail to read closely.
Is there a warranty on Finnigan instruments bought here?
A warranty is often possible and is arranged in consultation for the specific listing. Terms attach to the individual unit rather than to the Finnigan brand as a whole.
Are Finnigan instruments suitable for clinical and research work?
Yes. Triple quadrupole platforms such as the TSQ Quantum are used for targeted quantitative LC-MS behind molecular diagnostics and clinical screening, while ion trap systems like the LCQ and LTQ and the LTQ Orbitrap handle proteomics and metabolomics in research laboratories.
How long do Finnigan mass spectrometers last?
These are durable analytical platforms that can run for many years when maintained, which is why spares for discontinued models remain relevant. Since every Finnigan listing here is used, the condition described in each listing is what tells you where a given unit sits in its service life.
Can I still get parts for older Finnigan systems?
Parts for these platforms can be sourced via Questpair, which matters for discontinued Finnigan and Thermo Finnigan instruments where keeping an existing system running depends on spares. Availability varies by model, so name the series when you enquire.
What are the alternatives to Finnigan mass spectrometers?
The nearest comparisons depend on the analyser type you need: a triple quadrupole buyer weighs the TSQ lines against other quadrupole LC-MS platforms, while an ion trap or high-resolution buyer compares the LTQ and LTQ Orbitrap against other trap and Orbitrap systems. Since Finnigan now sits within Thermo Fisher Scientific, later Thermo instruments are the direct continuation of these lines.
How long does delivery take for a Finnigan order?
Lead time depends on the individual supplier and the item's location, since listings come from verified suppliers and distributors across 6 countries. Contact Questpair for the timing on a specific listing.
Do you sell complete Finnigan systems or just parts and spares?
Both. The catalogue mixes individual parts and components with complete spectrometry systems, which is why the price range is so broad; read the listing to see whether it covers a full instrument or a single component.
Can Finnigan equipment be shipped internationally?
Listings come from verified suppliers and distributors across 6 countries, so international shipping is generally possible. Arrangements and costs are handled per listing, so confirm with Questpair for the unit you want.
Which Finnigan product lines exist and how do they differ?
They split by analyser type: the LCQ was a 3D ion trap for LC-MS and the LTQ its linear-trap successor, with the earlier INCOS data systems in the same trap lineage. The TSQ 7000 and later TSQ Quantum are triple quadrupoles for targeted quantitation, the LTQ Orbitrap pairs a linear trap with Orbitrap high-resolution analysis, and the GCQ and DSQ cover trap and single-quadrupole GC-MS respectively.
Which types of Finnigan instruments are listed here and in what condition?
The listed types include autosamplers, analytical instruments, mass spectrometers, gas chromatographs, photodiode array detectors and liquid chromatography pumps. All Finnigan listings here are used, with 100 percent marked used, so the condition stated in each listing is the deciding detail.
Why are some Finnigan listings so much cheaper than others?
The gap from EUR 42 to EUR 13.377 comes down to what is actually on offer: a single part, detector or pump sits at the low end, while a complete triple quadrupole or Orbitrap system sits at the high end. Series and condition also move the price, since a full working platform differs sharply from a component sold for spares.
About Questpair
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