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|Title: ||Fluorescence lifetime standards for time and frequency domain fluorescence spectroscopy|
|Authors: ||Boens, Noel|
VAN DE VEN, Martin
Silva, Norberto D., Jr.
Visser, Antonie J. W. G.
van Hoek, Arie
Lakowicz, Joseph R.
Szabo, Arthur G.
Krajcarski, Don T.
|Issue Date: ||2007|
|Publisher: ||AMER CHEMICAL SOC|
|Citation: ||ANALYTICAL CHEMISTRY, 79(5). p. 2137-2149|
|Abstract: ||A series of fluorophores with single-exponential fluorescence decays in liquid solution at 20 degrees C were measured independently by nine laboratories using single-photon timing and multifrequency phase and modulation fluorometry instruments with lasers as excitation source. The dyes that can serve as fluorescence lifetime standards for time-domain and frequency-domain measurements are all commercially available, are photostable under the conditions of the measurements, and are soluble in solvents of spectroscopic quality (methanol, cyclohexane, water). These lifetime standards are anthracene, 9-cyanoanthracene, 9,10-diphenylanthracene, N-methylcarbazole, coumarin 153, erythrosin B, N-acetyl-L-tryptophanamide, 1,4-bis(5-phenyloxazol-2-yl)benzene, 2,5-diphenyloxazole, rhodamine B, rubrene, N-(3-sulfopropyl)acridinium, and 1,4-diphenylbenzene. At 20 degrees C, the fluorescence lifetimes vary from 89 ps to 31.2 ns, depending on fluorescent dye and solvent, which is a useful range for modern pico- and nanosecond time-domain or mega- to gigahertz frequency-domain instrumentation. The decay times are independent of the excitation and emission wavelengths. Dependent on the structure of the dye and the solvent, the excitation wavelengths used range from 284 to 575 nm, the emission from 330 to 630 nm. These lifetime standards may be used to either calibrate or test the resolution of time- and frequency-domain instrumentation or as reference compounds to eliminate the color effect in photomultiplier tubes. Statistical analyses by means of two-sample charts indicate that there is no laboratory bias in the lifetime determinations. Moreover, statistical tests show that there is an excellent correlation between the lifetimes estimated by the time-domain and frequency-domain fluorometries. Comprehensive tables compiling the results for 20 (fluorescence lifetime standard/solvent) combinations are given.|
|Notes: ||Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium. Univ Hasselt, BIOMED, B-3590 Diepenbeek, Belgium. Conservatoire Natl Arts & Metiers, CNRS, UMR 8531, Lab Chim Gen, F-75141 Paris, France. ENS Cachan, Lab PPSM, F-94235 Cachan, France. Univ Calif Irvine, Dept Biomed Engn, Lab Fluorescence Dynam, Irvine, CA 92697 USA. Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England. Univ London Imperial Coll Sci Technol & Med, Ctr Photomol Sci, London SW7 2AY, England. Univ Wageningen & Res Ctr, Dept Biochem & Biophys, Microspect Ctr, NL-6703 HA Wageningen, Netherlands. Univ Maryland, Ctr Cluorescence Spect, Dept Biol Chem, Baltimore, MD 21201 USA. Wilfrid Laurier Univ, Fac Sci, Waterloo, ON N2L 3C5, Canada. Kwansei Gakuin Univ, Sch Sci, Dept Chem, Nishinomiya, Hyogo 6628501, Japan.Boens, N, Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200F Bus 2404, B-3001 Heverlee, Belgium.Noel.Boens@chem.kuleuven.be|
|ISI #: ||000244497300045|
|Type: ||Journal Contribution|
|Validation: ||ecoom, 2008|
|Appears in Collections: ||Research publications|
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