OpenRAMAN – Low-cost, high-performance, open-source Raman spectrometer

Re:OpenRAMAN – Low-cost, high-performance, open-source Raman... by _xw5f on Tuesday May 05, 2020 @08:10PM (#23086570)

Nah, we do this daily for ID of chemicals as part of a GMP release. We use a handheld Raman spectrophotometer--just point it at the stuff and it gives you the spectrum.

Here is a paper detailing its use in determining methanol content of ethanol spirits: https://pubs.rsc.org/en/content/articlelanding/2019/an/c8an0...

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Re:OpenRAMAN – Low-cost, high-performance, open-source Raman... by tonypace on Wednesday May 06, 2020 @07:47AM (#23089901)

I thought you needed to keep the sample very dark and only illuminate it with a laser so you can see the changes in reflected wavelengths. How does a handled unit with light all around get around that?

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Re:OpenRAMAN – Low-cost, high-performance, open-source Raman... by DrAwdeOccarim on Wednesday May 06, 2020 @11:58AM (#23092512)

Raman is very particular for the Stokes transition. When compared to other spec methods, it is much easier to cancel out background.

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