The marketing of enantiopure pharmaceuticals has become more common due to regulatory and safety concerns surrounding the potential differences in biological activity of opposite enantiomers. However, achieving the desired enantiopurity can be a challenge, and low levels of the undesired enantiomer
Detection of S2 chemiluminescence in solid Ar using a solid-state photomultiplier
β Scribed by Brent E. Wurfel; George C. Pimentel
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 401 KB
- Volume
- 223
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
We have developed a spectrometric system based on a single-photon counting solid-state photomultiplier (SSPM). The SSPM can count single photons from the visible (400 nm) into the infrared (28 pm) with a high quantum yield. We have used the visible photon counting abilities in order to develop proper amplification, electronics circuitry and optical methods for the SSPM, so that we may apply them to infrared studies in the future. Here we present a test study; we have recorded the B" 'II,+X 3B; transitions of Sz, created from the reactions of sulfur atoms in solid argon.
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