Fiber-Optic Pipette (FOP) for Rapid Long Pathlength Capillary Spectroscopy.
Patent Application, Filed 30 Jul 98
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
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.
- Pumps, Filters, Pipes, Tubing, Fittings and Valves
- Atomic and Molecular Physics and Spectroscopy
- Fiber Optics and Integrated Optics