✦ LIBER ✦

Optical sensor for on-line determination of solvent mixtures based on a fluorescent solvent polarity probe

✍ Scribed by Manfred A. Kessler; Jürgen G. Gailer; Otto S. Wolfbeis

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 548 KB
Volume: 3
Category: Article
ISSN: 0925-4005
DOI: 10.1016/0925-4005(91)80016-d

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Design of a solvatochromic polymer-based

Design of a solvatochromic polymer-based fiber optics chemical sensor for polar solvent detection

✍ Dr. Denis Fichou; Dr. Christine Hubert; Dr. Francis Garnier 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 469 KB 👁 2 views

Characterization of solvent mixtures. Pa

Characterization of solvent mixtures. Part 8 — preferential solvation of chemical probes in binary solvent systems of a polar aprotic hydrogen-bond acceptor solvent with acetonitrile or nitromethane. Solvent effects on aromatic nucleophilic substitution reactions

✍ P. M. E. Mancini; A. Terenzani; C. Adam; A. Pérez; L. R. Vottero 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB 👁 2 views

The use of chemical probes for the characterization of chemical properties was explored for completely non-aqueous aprotic binary solvent mixtures. The Dimroth-Reichardt E T (30) betaine dye, 4-nitrophenol, 4nitroanisole, 4-nitroaniline and N,N-diethyl-4-nitroaniline were used to study preferential

Fibre-optic sensor for the determination

Fibre-optic sensor for the determination of carboxylic acids based on fluorescence enhancement of lipophilized fluorescein isologues

✍ Hui-Hui Zeng; Ke-Min Wang; Xiao-Hai Yang; Ru-Qin Yu 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 521 KB

A fibre-optic sensor for the determination of carboxyhc acids based on fluorescence enhancement of lipophilized fluorescein isologues dissolved in a plasticized polyfvinyl chloride1 membrane was developed. With the optimum conditions described, carboxylic acids in sample solutions from 1 to 9 M (for

Polar solvents for the desorption of a l

Polar solvents for the desorption of a liquid chromatographic precolumn coupled on-line with a capillary gas chromatograph

✍ Vreuls, J. J. ;Cuppen, W. J. G. M. ;Dolecka, E. ;Maris, F. A. ;de Jong, G. J. ;B 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 599 KB

Influence of the Organic Solvent in On-L

Influence of the Organic Solvent in On-Line Solid Phase Extraction for the Determination of PAHs by Liquid Chromatography and Fluorescence Detection

✍ El Harrak, Rachid ;Calull, Marta ;Marcé, Rosa M. ;Borrull, Francesc 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 47 KB 👁 2 views

Solvent effects on aromatic nucleophilic

Solvent effects on aromatic nucleophilic substitution reactions. Part 7. Determination of the empirical polarity parameter ET(30) for dipolar hydrogen bond acceptor–co-solvent (chloroform or dichloromethane) mixtures. Kinetics of the reactions of halonitrobenzenes with aliphatic amines

✍ P. M. E. Mancini; A. Terenzani; C. Adam; L. R. Vottero 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB 👁 2 views

Empirical solvent polarity parameters E T (30) were determined by UV/VIS spectroscopy, using Dimroth-Reichardt's betaine dye, as a function of composition, for several binary solvent mixtures [i.e. polar hydrogen bond acceptor (PHBA) solvents + chloroform or dichloromethane]. Each solvent system was