Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy
Determination of quantum yields for various processes (such as fluorescence and triplet formation) in dye-loaded light-scattering powdered samples is an open issue. Here, we report the testing of laser-induced optoacoustic spectroscopy (LIOAS) for the determination of fluorescence quantum yields of...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_07437463_v25_n10_p5861_Tomasini |
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todo:paper_07437463_v25_n10_p5861_Tomasini2023-10-03T15:38:39Z Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy Tomasini, E.P. Román, E.S. Braslavsky, S.E. Cellulose powder Fluorescence quantum yield Integrating spheres Langmuir Laser-induced optoacoustic spectroscopy Powdered samples Rhodamine 6G Laser spectroscopy Light scattering Quantum yield Reflection Scattering Fluorescence cellulose rhodamine rhodamine 6G article chemistry fluorescence laser methodology powder spectroscopy Cellulose Fluorescence Lasers Powders Rhodamines Spectrum Analysis Determination of quantum yields for various processes (such as fluorescence and triplet formation) in dye-loaded light-scattering powdered samples is an open issue. Here, we report the testing of laser-induced optoacoustic spectroscopy (LIOAS) for the determination of fluorescence quantum yields of Rhodamine 101 and Rhodamine 6G adsorbed at various loadings on microgranular cellulose powder. The results of the LIOAS experiments are consistent with those from the method developed in one of our laboratories based on the measurement of apparent reflectance using an integrating sphere [Mirenda, M.; Lagorio, M. G.; San Roman, E. Langmuir 2004,20,3690-3697], which allows the simultaneous calculation of fluorescence quantum yield and reflectance devoid of fluorescence artifacts. Criteria to quantify overall errors and detect outlying values are developed. The theory underlying the application of LIOAS to light-scattering samples and experimental details are presented. © 2009 American Chemical Society. Fil:Tomasini, E.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Braslavsky, S.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07437463_v25_n10_p5861_Tomasini |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cellulose powder Fluorescence quantum yield Integrating spheres Langmuir Laser-induced optoacoustic spectroscopy Powdered samples Rhodamine 6G Laser spectroscopy Light scattering Quantum yield Reflection Scattering Fluorescence cellulose rhodamine rhodamine 6G article chemistry fluorescence laser methodology powder spectroscopy Cellulose Fluorescence Lasers Powders Rhodamines Spectrum Analysis |
| spellingShingle |
Cellulose powder Fluorescence quantum yield Integrating spheres Langmuir Laser-induced optoacoustic spectroscopy Powdered samples Rhodamine 6G Laser spectroscopy Light scattering Quantum yield Reflection Scattering Fluorescence cellulose rhodamine rhodamine 6G article chemistry fluorescence laser methodology powder spectroscopy Cellulose Fluorescence Lasers Powders Rhodamines Spectrum Analysis Tomasini, E.P. Román, E.S. Braslavsky, S.E. Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| topic_facet |
Cellulose powder Fluorescence quantum yield Integrating spheres Langmuir Laser-induced optoacoustic spectroscopy Powdered samples Rhodamine 6G Laser spectroscopy Light scattering Quantum yield Reflection Scattering Fluorescence cellulose rhodamine rhodamine 6G article chemistry fluorescence laser methodology powder spectroscopy Cellulose Fluorescence Lasers Powders Rhodamines Spectrum Analysis |
| description |
Determination of quantum yields for various processes (such as fluorescence and triplet formation) in dye-loaded light-scattering powdered samples is an open issue. Here, we report the testing of laser-induced optoacoustic spectroscopy (LIOAS) for the determination of fluorescence quantum yields of Rhodamine 101 and Rhodamine 6G adsorbed at various loadings on microgranular cellulose powder. The results of the LIOAS experiments are consistent with those from the method developed in one of our laboratories based on the measurement of apparent reflectance using an integrating sphere [Mirenda, M.; Lagorio, M. G.; San Roman, E. Langmuir 2004,20,3690-3697], which allows the simultaneous calculation of fluorescence quantum yield and reflectance devoid of fluorescence artifacts. Criteria to quantify overall errors and detect outlying values are developed. The theory underlying the application of LIOAS to light-scattering samples and experimental details are presented. © 2009 American Chemical Society. |
| format |
JOUR |
| author |
Tomasini, E.P. Román, E.S. Braslavsky, S.E. |
| author_facet |
Tomasini, E.P. Román, E.S. Braslavsky, S.E. |
| author_sort |
Tomasini, E.P. |
| title |
Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| title_short |
Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| title_full |
Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| title_fullStr |
Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| title_full_unstemmed |
Validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| title_sort |
validation of fluorescence quantum yields for light-scattering powdered samples by laser-induced optoacoustic spectroscopy |
| url |
http://hdl.handle.net/20.500.12110/paper_07437463_v25_n10_p5861_Tomasini |
| work_keys_str_mv |
AT tomasiniep validationoffluorescencequantumyieldsforlightscatteringpowderedsamplesbylaserinducedoptoacousticspectroscopy AT romanes validationoffluorescencequantumyieldsforlightscatteringpowderedsamplesbylaserinducedoptoacousticspectroscopy AT braslavskyse validationoffluorescencequantumyieldsforlightscatteringpowderedsamplesbylaserinducedoptoacousticspectroscopy |
| _version_ |
1807322405971951616 |