Fiber-Optic Pipette (FOP) for Rapid Long Pathlength Capillary Spectroscopy.
Abstract
Capillary spectroscopy is frequently used in the analysis of small-volume liquid samples. Traditionally, optical spectroscopy of samples in capillary tubes has been achieved by using simple lenses to excite the sample and collect the resulting signal of interest, Figure la. More recently, these standard optical arrangements have been replaced with fiber-optics, Figure 1b. Coupling of a fiber-optic probe to the end of a capillary tube has provided a much simpler means of sample excitation and signal collection. In addition, this arrangement has allowed for the excited and collected light to be efficiently waveguided throughout the sample medium over a long pathlength. Thus, a larger sample is interrogated (opposed to traditional capillary or non- capillary measurements) and significant signal enhancements have been achieved.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 30, 1998
- Accession Number
- ADD019713
Entities
People
- Christopher Stellman
- Frank Bucholtz
- Kenneth Ewing
Organizations
- United States Department of the Navy