In-situ spectrophotometric probe
A spectrophotometric probe is described for in situ absorption spectra measurements comprising a first optical fiber carrying light from a remote light source, a second optical fiber carrying light to a remote spectrophotometer, the proximal ends of the first and second optical fibers parallel and co-terminal, a planoconvex lens to collimate light from the first optical fiber, a reflecting grid positioned a short distance from the lens to reflect the collimated light back to the lens for focusing on the second optical fiber. The lens is positioned with the convex side toward the optical fibers. A substrate for absorbing analyte or an analyte and reagent mixture may be positioned between the lens and the reflecting grid. 5 figs.
- DOE Contract Number:
- AC09-76SR00001
- Assignee:
- PTO; EDB-94-090529
- Patent Number(s):
- US 5172192; A
- Application Number:
- PPN: US 7-478328
- OSTI ID:
- 7117652
- Country of Publication:
- United States
- Language:
- English
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