Chemical engineer Mark Basile has completed his own Raman spectroscopy study on red/gray chips and other materials, including paint. He is currently writing up the data and the report will be made publicly available soon - how soon depends on whether it will simply be posted as a publicly available PDF file, or published in a journal.
Raman spectroscopy offers several advantages for microscopic analysis. Since it is a scattering technique, specimens do not need to be fixed or sectioned. Raman spectra can be collected from a very small volume (< 1 µm in diameter); these spectra allow the identification of species present in that volume. Water does not generally interfere with Raman spectral analysis. Thus, Raman spectroscopy is suitable for the microscopic examination of minerals, materials such as polymers and ceramics, cells, proteins and forensic trace evidenceLook for our next update in April 2018, and news about the promised independent tests.
- https://en.wikipedia.org/wiki/Raman_spectroscopy
