Results 131 to 140 of about 1,570 (176)
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On the aggregation of rhodamine B in ethanol
Chemical Physics Letters, 1988Abstract The dimer and the trimer aggregation constants of the cationic form of rhodamine B are determined in very concentrated ethanolic solutions of the dye. The absorption spectrum, the geometrical structure and the association bonding of the aggregates are discussed and compared with those previously obtained in aqueous solution.
F.López Arbeloa +2 more
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Aggregation of Rhodamine B in Water
Russian Journal of Applied Chemistry, 2004Protolytic and associative equilibria in aqueous solutions of rhodamine B were studied. The curves of potentiometric titration with NaOH solution of the dye hydrochloride within the 5 ×10-4-3 ×10-2 M range and at an ionic strength of 0.1 M (NaCl or KCl) were treated by chemometric methods of successive modification of the equilibrium system models with
N. O. Mchedlov-Petrosyan, Yu. V. Kholin
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The composition of rhodamine b chlorogallate
Analytica Chimica Acta, 1961Abstract The formula of rhodamine Bchlorogallate has been shown to be (RH) GaCl4,where R == rhodamine B.
F. Culkin, J.P. Riley
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2022
Ring-opening reaction of rhodamine spirolactam has been widely applied to construct fluorescent probes. The fluorescence properties of the probe were finely tuned for specific purpose through changing the rhodamine fluorophore. However, the influence on response range and kinetic parameters of the probe during the change has been seldom discussed ...
Fei, Deng +6 more
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Ring-opening reaction of rhodamine spirolactam has been widely applied to construct fluorescent probes. The fluorescence properties of the probe were finely tuned for specific purpose through changing the rhodamine fluorophore. However, the influence on response range and kinetic parameters of the probe during the change has been seldom discussed ...
Fei, Deng +6 more
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Molecular forms of rhodamine B
Chemical Physics Letters, 1981Abstract Three molecular forms of rhodamine B (neutral, cationic and cationic-lactonic) in aqueous solutions are reported. The pka of the equilibria between the neutral and cationic forms as well as cationic and cationic-lactonic ones are evaluated. The dimerization constants of neutral and cationic forms (coloured) are also determined.
I.López Arbeloa, P.Ruiz Ojeda
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Chemical Physics Letters, 1982
Abstract Aggregation of the coloured neutral and cationic forms of rhodamine β in aqueous solution has been studied. The formation constants and absorption of the dimers were determined. The geometric disposition of monomers in both aggregates and the nature of the association forces are discussed. Trimers are not formed.
I. López Arbeloa, P. Ruiz Ojeda
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Abstract Aggregation of the coloured neutral and cationic forms of rhodamine β in aqueous solution has been studied. The formation constants and absorption of the dimers were determined. The geometric disposition of monomers in both aggregates and the nature of the association forces are discussed. Trimers are not formed.
I. López Arbeloa, P. Ruiz Ojeda
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The effects of Rhodamine B on the chromosomes of Muntiacus muntjac
Mutation Research/Genetic Toxicology, 1981Cytogenetic analysis of Muntiacus muntjac fibroblast cells exposed to the xanthene dye, Rhodamine B, revealed a significant increase in chromosomal aberrations. The M. muntjac fibroblasts were exposed to various concentrations of Rhodamine B and examined for increases in aberration frequencies.
I L, Lewis, R M, Patterson, H C, McBay
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A rhodamine B-based lysosomal pH probe
Journal of Materials Chemistry B, 2015A novel rhodamine B-based lysosomal pH probe RML was developed. RML responded to acidic pH with short response time, high selectivity and high sensitivity and could detect lysosomal pH change in living cells.
Shi-Li, Shen +4 more
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Photophysics of Rhodamine B Interacting with Silver Spheroids
Journal of Colloid and Interface Science, 1999Deactivation processes of Rhodamine B (RB) in water and interacting with silver sols were studied by using conventional fluorescence, laser-induced fluorescence, and pulsed laser photoacoustics. Results showed that the emission efficiencies, absorption cross sections, and nonradiative deactivation pathway of RB interacting with silver spheroids of ...
, Marchi, , Bilmes, , Bilmes
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Sonocatalytic degradation of rhodamine B in presence of CdS
Environmental Science and Pollution Research, 2018A novel sonocatalyst CdS was prepared by a facile precipitation method, and characterized by X-ray powder diffraction, transmission electron microscopy, UV-vis absorption spectroscopy, and photoluminescence spectroscopy. Comparative sonocatalytic degradation experiments were carried out in different conditions under ultrasonic irradiation and with ...
Limin, Song, Yamiao, Li, Shujuan, Zhang
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