Results 191 to 200 of about 4,421,258 (226)

Lifetime Spectra for Room-Temperature Phosphorescence

Applied Spectroscopy, 1989
A large number of articles on the subject of Room Temperature Phosphorescence (RTP) on solid substrates have recently appeared in the literature, confirming the fact that multiple lifetimes are involved for the analyte. This is not an unexpected observation, considering the heterogeneity of the filter paper substrate employed and the large number of ...
K. A. Murray, E. Gonzalez, R. B. Gregory, K. W. Street   +3 more
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Room temperature phosphorescence optosensor for tetracyclines

Analytica Chimica Acta, 1993
Abstract A flow-through optosensor for tetracyclines based on the tetracycline-europium chelate room temperature phosphorescence energy transfer is proposed. The sensor is developed in conjunction with a flow-injection analysis system and is based on the transient immobilization on a non-ionic resin (packed in a flow-through cell) of the tetracycline-
Fausto Alava-Moreno, Marta Elena Díaz-García, Alfredo Sanz-Medel   +2 more
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Solid‐Phase Room‐Temperature Phosphorescence

ChemInform, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Robert J. Hurtubise, Allison L. Thompson, Sara E. Hubbard   +2 more
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Molecular Persistent Room-Temperature Phosphorescence from Tetraarylaminoboranes

Inorganic Chemistry, 2023
Herein, we report the synthesis, molecular structure, and optical features of tetrarylaminoboranes 1 (Mes2B-N(Ph)(C10H7)) and 2 (Mes2B-N(Ph)(C14H9)). In the solution state, 1 shows aggregation-induced emission enhancement and color switching, while 2 displays emission color switching and aggregation-caused quenching. At 77 K, frozen solutions of 1 show
Rajendra Prasad Nandi, Neena K. Kalluvettukuzhy, Sudhakar Pagidi, Pakkirisamy Thilagar   +3 more
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Room-Temperature Phosphorescence of Impure Fluorene

Analytical Letters, 1990
Abstract Impurities in commercial fluorene were detected by thin-layer chromatography and identified by room-temperature phosphorimetry (RTP). Acenaphthene content was analyzed by the standard addition method by using normal RTP measurement procedures with T1(I) as the heavy atom.
L. Bruzzone, R. Badía
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Room Temperature Phosphorescence Optosensor for Terbium

Analytical Letters, 1996
Abstract A solid surface room temperature phosphorescence optosensing method has been developed for the determination of terbium(III) based on the adsorption of its binary complex with 1,4-bis (l'-phenyl-3′-methyl-5′-pyrazolone-4′-) butanedione-(1,4) (BPMPBD) onto the hydrogen form of a strong cation exchange resin packed in a flow cell in an aqueous ...
Zhilong Gong, Zhujun Zhang, Anyun Zhang
openaire   +1 more source

Prevalent Room-Temperature Phosphorescence in Natural Nuts

Journal of the American Chemical Society
Room-temperature phosphorescence (RTP) has extensive applications in various fields such as data encryption, chemical sensing, optoelectronic displaying, and time-resolved bioimaging, yet most materials are fossil fuel-based. Recently, an increasing interest has emerged with respect to natural organic RTP.
Ruizhi Yang, Hao Su, Jiajun Song, Chendong Xie, Biao Chen, Xueyu Li, Jun Jiang, Guoqing Zhang, Yi Luo, Xuepeng Zhang, Ben Zhong Tang   +10 more
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Solid-Surface Room Temperature Phosphorescence

Applied Spectroscopy Reviews, 1992
Abstract Luminescence can be defined as radiation emitted from atoms or molecules as they undergo a radiative transition from an excited state to a lower energy state. After the absorption of incident radiation, the emission of a photon during the radiative transition is called photoluminescence.
Maryann Gunshefski, Jose J. Santana, James Stephenson, James D. Winefordnert   +3 more
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Room temperature phosphorescence optosensing for gadolinium

Mikrochimica Acta, 1997
An optosensing method for gadolinium based on the room-temperature phosphorescence behavior in aqueous solution induced by the transient adsorption of the complex formed by 1,4-bis (1′-phenyl-3′-methyl-5′-pyrazolone-4′-)butanedione (1,4) with Gd (III) on the chelating resin Chelex 100 (packed in a flow cell) is proposed.
Zhilong Gong, Zhujun Zhang
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A Simple Approach to Room Temperature Phosphorescent Allenylidene Complexes

Angewandte Chemie, 2012
Keywords: alkynyl complexes ; allenylidene complexes ; carbenes ; cumulenes ; phosphorescent iridium complexes Reference EPFL-ARTICLE-179446doi:10.1002/anie.201203329View record in Web of Science Record created on 2012-07-02, modified on 2017-12 ...
Kessler, Florian, Curchod, Basile F E, Tavernelli, Ivano, Rothlisberger, Ursula, Scopelliti, Rosario, Di Censo, Davide, Grätzel, Michael, Nazeeruddin, Md Khaja, Baranoff, Etienne   +8 more
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