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Time-resolved fluorescence with an optical-fiber probe

✍ Scribed by G.H. Vickers; R.M. Miller; G.M. Hieftje

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
626 KB
Volume
192
Category
Article
ISSN
0003-2670

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✦ Synopsis

Time-resolved fluorescence measurements are made with an optical-fiber probe approximately 16 m long. Fluorescence lifetimes for 1.00 PM solutions of rhodamine-B and rose bengal in ethanol were found to be 2.78 + 0.04 ns and 0.77 ?: 0.07 ns, respectively, similar in accuracy and precision to values obtained with conventional techniques. Calculations are used to investigate the limitations in remote determinations caused by temporal broadening. Results indicate that fiber lengths approaching 1 km can be used without significant loss in accuracy or precision.

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