Time-resolved phosphorimetry as a method of simultaneous analysis of two-component mixtures

1967 ◽  
Vol 39 (4) ◽  
pp. 500-503 ◽  
Author(s):  
P. A. St. John ◽  
James D. Winefordner
Keyword(s):  
Simultaneous Analysis ◽  
Time Resolved ◽  
Two Component

scholarly journals Time-Resolved Resonance Raman Spectroscopy of Excited-State Porphyrins

1999 ◽  
Vol 19 (1-4) ◽  
pp. 271-274 ◽  
Author(s):  
S. E. J. Bell ◽  
J. H. Rice ◽  
J. J. McGarvey ◽  
R. E. Hester ◽  
J. N. Moore ◽  
...  
Keyword(s):  
Excited State ◽  
Excited States ◽  
Laser Excitation ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Laser Pulses ◽  
Significant Shift ◽  
Time Resolved ◽  
Two Component ◽  
Absorbance Difference

Time-resolved resonance Raman (TR3) and absorbance difference studies of the excited states of Cu(TPP) (TPP=5,10,15,20-tetraphenylporphyrin) have been carried out with < 10 ps times resolution in THF and pyridine solvents. In THF the distinctive transient Raman bands in the ν2 and ν4 regions, previously observed with ns laser pulses, grow in the first 55 ps before decaying in 100's of ps. The ∆A spectra also show biphasic decay. This behaviour is associated with attack by solvent on the 4-coordinate excited state to form the longer lived species observed in TR3 experiments.In pyridine two component decay is also observed but it is the shorter-lived species which gives the transient Raman bands seen previously with ns laser excitation. This state is different from that seen in THF. At 5 ps delay ν4 is broader than in the ground state and, more importantly, there is a significant shift in the two pyridine bands at ca. 1000 cm-1. This implies a significant involvement of the pyridine-based orbitals in the excited state.

Two-Component Dynamics of the Order Parameter of High TemperatureBi2Sr2CaCu2O8+δSuperconductors Revealed by Time-Resolved Raman Scattering

2009 ◽  
Vol 102 (17) ◽  
Author(s):  
R. P. Saichu ◽  
I. Mahns ◽  
A. Goos ◽  
S. Binder ◽  
P. May ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Order Parameter ◽  
Time Resolved ◽  
Two Component

scholarly journals Time-resolved analysis of photoluminescence at a single wavelength for ratiometric and multiplex biosensing and bioimaging

2021 ◽  
Author(s):  
Qi Wu ◽  
Peiling Dai ◽  
Yun Wang ◽  
Jin Zhang ◽  
Meng Li ◽  
...  
Keyword(s):  
Simultaneous Analysis ◽  
Time Resolved ◽  
Multiple Signals ◽  
Spectral Overlap

Simultaneous analysis of luminescence signals of multiple probes can improve the accuracy and efficiency of biosensing and bioimaging. Analysis of multiple signals at different wavelengths usually suffers from spectral overlap,...

Simultaneous analysis of time-resolved fluorescence quenching data in aqueous micellar systems in the presence and absence of added alcohol

1989 ◽  
Vol 93 (8) ◽  
pp. 3244-3250 ◽  
Author(s):  
Hongwen Luo ◽  
Noel Boens ◽  
Mark Van der Auweraer ◽  
Frans C. De Schryver ◽  
Angelos Malliaris
Keyword(s):  
Fluorescence Quenching ◽  
Simultaneous Analysis ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Micellar Systems ◽  
Presence And Absence

scholarly journals Simultaneous Analysis of Two-Site Gene Polymorphisms Using Time-Resolved Fluorescence Immunoassay.

2000 ◽  
Vol 16 (7) ◽  
pp. 765-769 ◽  
Author(s):  
Kazuyuki WATANABE ◽  
Miwa ODA ◽  
Hidetoshi ARAKAWA ◽  
Masako MAEDA
Keyword(s):  
Gene Polymorphisms ◽  
Simultaneous Analysis ◽  
Fluorescence Immunoassay ◽  
Time Resolved Fluorescence ◽  
Time Resolved

scholarly journals The Peculiarities of Singlet Electronic Excitation Energy Transfer Processes in Alq3 Films

2020 ◽  
Vol 65 (3) ◽  
pp. 196
Author(s):  
O. M. Navozenko ◽  
V. M. Yashchuk ◽  
Yu. P. Piryatinski ◽  
D. Gudeiko ◽  
A. P. Naumenko ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excitation Energy ◽  
Electronic Excitation ◽  
Excitation Energy Transfer ◽  
Electronic Excitation Energy Transfer ◽  
Electronic Excitation Energy ◽  
Fluorescence Excitation ◽  
Time Resolved ◽  
Two Component ◽  
The Matrix

The absorption and luminescence of new boron-containing dyes in two-component films of Alq3 (matrix)-dye(impurity) (obtained by the method of thermal vacuum deposition) are studied. The comparison of the spectra of absorption, fluorescence, and fluorescence excitation of a dyes in one-component solutions and double-component films shows the existence of the effective electronic excitation energy transfer (EEET) from the matrix to dye molecules. Time-resolved spectra of two-component films also manifest strong EEET in these systems. For the estimation of the average exciton spreading length in Alq3 films, the diffusion model of the motion of singlet excitons is used. The diffusion coefficient is evaluated using time-resolved spectroscopy. The optimum concentrations of dyes in a light-emitting layer of OLED are evaluated based on experimental data and the used model of EEET.

New Squaraine-based two-component initiation systems for UV-blue light induced radical polymerization: Kinetic and time-resolved laser spectroscopy studies

2016 ◽  
Vol 55 (3) ◽  
pp. 471-484 ◽  
Author(s):  
Janina Kabatc ◽  
Katarzyna Kostrzewska ◽  
Katarzyna Jurek ◽  
Martyna Kozak ◽  
Alicja Balcerak ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Blue Light ◽  
Laser Spectroscopy ◽  
Time Resolved ◽  
Polymerization Kinetic ◽  
Two Component ◽  
Spectroscopy Studies

A New Application of Chemometric Techniques to HPLC Data for the Simultaneous Analysis of a Two‐Component Mixture

2005 ◽  
Vol 28 (14) ◽  
pp. 2179-2194 ◽  
Author(s):  
Erdal Dinç ◽  
Özgür Üstündağ ◽  
Abdil Özdemir ◽  
Dumitru Baleanu
Keyword(s):  
Simultaneous Analysis ◽  
Component Mixture ◽  
Two Component ◽  
Chemometric Techniques ◽  
Hplc Data

Simultaneous analysis of time-resolved fluorescence-quenching data in micellar systems: application to mobile quenchers

Langmuir ◽  
1989 ◽  
Vol 5 (4) ◽  
pp. 948-953 ◽  
Author(s):  
Steven Reekmans ◽  
Noel Boens ◽  
Mark Van der Auweraer ◽  
Hongwen Luo ◽  
Frans C. De Schryver
Keyword(s):  
Fluorescence Quenching ◽  
Simultaneous Analysis ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Micellar Systems
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