A mass spectrometer, or mass spec, is an instrument that ionizes or electrically charges molecules in a sample, and then measures and counts them. This process consists of four steps: ionization, acceleration, deflection and detection. Mass specs themselves are composed of three main parts: an ion source, a mass detector, and an analyzer.
BioSurplus carries a wide variety of mass specs, from older models to extremely sophisticated newer machines. These include older ABI models, AB Sciex 5500s, Thermo LTQs, and models from Shimadzu and Agilent.
In order to help you make the right choice when you’re in the market for a pre-owned mass spec, BioSurplus has produced a video and accompanying article explaining the various types and models of mass specs available.
In the video, BioSurplus Senior Vice President Fred Hill covers mass spec basics as well as some of the models we have in inventory. The article goes into greater detail on mass spectrometry and features sections on ion sources and the different types of analyzers.
All mass specs in our inventory were acquired from working labs and come with our 30-day guarantee. Each piece was tested before being placed in inventory and then is tested again before we ship it to you.
See below for a transcription of the video:
“A mass spec measures individual molecules and quantifies the types of molecules that are in a sample. It does that through ionization of the molecule and then a special detector is used with a computer to tell you what the masses of the molecules are.
“There’s generally an ion source, a mass detector and analyzer as the three main components of the mass spec. There are four steps to analysis with a mass spectrometer: ionization, acceleration, deflection and detection.
“BioSurplus carries many different types of mass spectrometers. We have several of the older ABI machines, we have some of the new AB Sciex such as the 5500s. We have Thermo mass specs such as the LTQs. We have some of the older Deca instruments; we also have Shimadzu and Agilent as well as some other manufacturers.”
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