Apparatus and method for measuring fluorescence intensities at a plurality of wavelengths and lifetimes

Patent · Tue May 04 00:00:00 EDT 1993

OSTI ID:6047614

Buican, T N

Apparatus and method is described for measuring intensities at a plurality of wavelengths and lifetimes. A source of multiple-wavelength electromagnetic radiation is passed through a first interferometer modulated at a first frequency, the output thereof being directed into a sample to be investigated. The light emitted from the sample as a result of the interaction thereof with the excitation radiation is directed into a second interferometer modulated at a second frequency, and the output detected and analyzed. In this manner excitation, emission, and lifetime information may be obtained for a multiplicity of fluorochromes in the sample.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Univ. of California, Alameda, CA (United States)
• Patent Number(s): US 5208651; A
• Application Number: PPN: US 7-731070
• OSTI ID: 6047614
• Resource Relation: Patent File Date: 16 Jul 1991
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
47 OTHER INSTRUMENTATION
INTERFEROMETERS
DESIGN
MATERIALS
FLUORESCENCE
ELECTROMAGNETIC RADIATION
EXCITATION
FREQUENCY DEPENDENCE
LIFETIME
MODULATION
OPERATION
WAVELENGTHS
ENERGY-LEVEL TRANSITIONS
LUMINESCENCE
MEASURING INSTRUMENTS
RADIATIONS
400102* - Chemical & Spectral Procedures
440800 - Miscellaneous Instrumentation- (1990-)