g_axelsson said:Seems to be quite a lot high-tech gear inside.
https://www.ebay.com/itm/Applied-BioSystems-4700-Proteomics-Analyzer-MALDI-TOF-TOF-Mass-Spectrometer-/162167334745
If it is working you might be able to sell it, LabX is a good site for selling and buying old instruments.
If you scrap it I would expect the laser, vacuum pump and various high voltage generators should be possible to sell on eBay as components.
I would also expect some gold plated components inside the vacuum chamber, especially around the detector where oxides might allow some charge to build up and that would affect the precision of the measurements.
This kind of scrap is my favorite, not for the content of precious metals, but for the opportunity to observe how an instrument like this is built. A lot of work to dismantle, but also a lot of fun. :mrgreen:
Göran
g_axelsson said:There might be some oil in the vacuum system (quite expensive stuff) and possibly in the high voltage system, but except of that I don't think there are any strange gases or reagents.
The working principle is that a sample of an unknown protein is blasted under vacuum by a laser beam. The pieces are ionized and accelerated in an electrical field, then the time of flight is measured until it hits the detector. Heavier pieces takes longer time to fly while lighter pieces takes shorter. The result is a spectra of different heavy pieces and from that they could piece together what the original protein was.
MALDI-TOF MS = Matrix Assisted Laser Desorption/Ionization - Time Of Flight Mass Spectroscopy.
https://www.shimadzu.com/an/lifescience/maldi/princpl1.html
Göran
Because I have an unhealthy curiosity and I'm a physicist by trade. :lol:silversaddle1 said:How do you know all this stuff? Amazing.
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