DOI: 10.1366/0003702914337119. Near-Infrared Probe for Determination of Solvent Hydrophobicity

Near-Infrared Probe for Determination of Solvent Hydrophobicity

10.1366/0003702914337119

Crossref journal-article

SAGE Publications

Applied Spectroscopy (179)

Abstract

The composition of aqueous solvents plays an important role in the spectroscopic characteristics of near-infrared (NIR) dyes. The effects of solvent hydrophobicity on NIR spectral characteristics have been studied with the use of different NIR dyes. An NIR dye (I) that belongs to the diethylthiacarbocyanine family was found to be the most sensitive to changes in the hydrophobicity of the environment. Dye I was used as a model dye to evaluate the analytical utility of this change. In pure water-miscible organic solvents, the absorption maximum for I appears in the region of 807 to 818 nm. If the hydrophobicity of the solvent mixture decreases by an increase in water concentration, an additional, well-separated absorption peak, which can be attributed to the dimer, appears at 698 nm. The relative intensity of these two peaks can be exploited for the determination of the composition of the solvent mixture. The method is evaluated with the use of the polarity parameter (P) for different solvent systems. The described method can be useful for quick spectroscopic determination of P values that are important for several analytical applications, e.g., in spectroscopy or reversed-phase chromatography.

Bibliography

Patonay, G., Antoine, M. D., Devanathan, S., & Strekowski, L. (1991). Near-Infrared Probe for Determination of Solvent Hydrophobicity. Applied Spectroscopy, 45(3), 457â461.

Authors 4

Gabor Patonay (first)
Miquel D. Antoine (additional)
Shrinivasan Devanathan (additional)
Lucjan Strekowski (additional)

References 19 Referenced 30

Rodd's Chemistry of Carbon Compounds, Coffey S., Ed. (Elsevier Scientific Publishing Company, Amsterdam, 1977), Vol. IV, Part B., pp. 370–422.
10.1063/1.1654074
10.1021/ac00126a016
10.1021/ac00271a007
10.1016/0001-8686(77)80011-0
10.1021/j100890a019
10.1063/1.1748240
10.1016/S0003-2670(00)80731-X
10.1080/01442358809353208
10.1016/S0003-2670(00)80800-4
10.1021/ja00449a004
10.1366/0003702904086326
{'volume-title': 'High Purity Solvent Guide', 'year': '1980', 'author': 'Przybytek J. T.', 'key': 'bibr13-0003702914337119'} / High Purity Solvent Guide by Przybytek J. T. (1980)
Introduction to Modern Liquid Chromatography, Snyder L. R. and Kirkland J. J, Eds. (John Wiley and Sons, New York, 1979), pp. 247–265.
{'key': 'bibr15-0003702914337119', 'first-page': '1189', 'volume': '3', 'author': 'Makin S. M.', 'year': '1977', 'journal-title': 'Zh. Org. Khim.'} / Zh. Org. Khim. by Makin S. M. (1977)
{'key': 'bibr16-0003702914337119', 'first-page': '2440', 'volume': '13', 'author': 'Makin S. M.', 'year': '1977', 'journal-title': 'Zh. Org. Khim.'} / Zh. Org. Khim. by Makin S. M. (1977)
10.1366/0003702894204443
10.1080/10739149008543716
10.1002/jhet.5570230144

Dates

Type	When
Created	20 years, 2 months ago (July 3, 2005, 9:49 p.m.)
Deposited	5 months, 3 weeks ago (March 10, 2025, 4:56 p.m.)
Indexed	1 month ago (Aug. 2, 2025, 1:17 a.m.)
Issued	34 years, 6 months ago (March 1, 1991)
Published	34 years, 6 months ago (March 1, 1991)
Published Online	34 years, 6 months ago (March 1, 1991)
Published Print	34 years, 6 months ago (March 1, 1991)

Funders 0

None

BibTeX

@article{Patonay_1991, title={Near-Infrared Probe for Determination of Solvent Hydrophobicity}, volume={45}, ISSN={1943-3530}, url={http://dx.doi.org/10.1366/0003702914337119}, DOI={10.1366/0003702914337119}, number={3}, journal={Applied Spectroscopy}, publisher={SAGE Publications}, author={Patonay, Gabor and Antoine, Miquel D. and Devanathan, Shrinivasan and Strekowski, Lucjan}, year={1991}, month=mar, pages={457–461} }

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