HackerTube / Video
DIY mass spectrometer measures potassium in dietary salt substitute
Applied Science
Ben Krasnow of Applied Science builds and operates a simple mass spectrometer, using it to measure potassium isotopes in a salt substitute. He explains the design choices and the theory behind it.
Recommended as an expert-made DIY build that explains why the apparatus is designed as it is, though one commenter notes a missing baseline run.
4 Hacker News mentions · 2020–2023