Some approaches to spectrophotometric data processing. Calculation of ionization constants of tribasic and tetrabasic fluorescein dyes

doi:10.26565/2220-637X-2013-22-12

Tatyana A. Cheipesh V.N. Karazin Kharkiv National University https://orcid.org/0000-0002-9709-5602

DOI: https://doi.org/10.26565/2220-637X-2013-22-12

Keywords: ionization constant, fluorescein dyes, multiwavelength spectrophotometry, multivariate curve resolution

Abstract

The applicability of certain methods, including a variant of the factor analysis method, for computation of ionization constants and limiting ionic forms spectra of tribasic and tetrabasic dyes was analyzed on the example of fluorescein and 4' aminofluorescein.

Downloads

Download data is not yet available.

References

Mchedlov-Petrossyan N. O. Fluoresceinovy'e krasiteli v rastvorah – horosho izuchenny'e sis-temy'? // Visn. Hark. nac. univ. 2004. № 626, Ser. Him., 11(34), P. 221. [in Russian].

Mchedlov-Petrossyan N. O., Kleshchevnikova V. N. Influence of the cetyltrimethylammo-nium chloride micellar pseudophase on the protolytic equilibria of oxyxanthene dyes at high bulk phase ionic strength // J. Chem. Soc., Faraday Transactions. 1994. 90(4). P. 629.

Aschi M., D’Archivio A. A., Fontana A., Formiglio A. Physicochemical properties of fluores-cent probes: Experimental and computational determination of the overlapping pKa values of carboxylfluorescein // J. Org. Chem. 2008. 73. P. 3411.

Batistela V. R., Pellosi D. S., de Souza F. D., da Costa W. F., de Oliveira Santin S. M. de Souza V. R., Caetano W., de Oliveira H. P. M., Scarminio I. S., Hioka N. pKa determinations of xanthene derivates in aqueous solutions by multivariate analysis applied to UV–Vis spec-trophotometric data // Spectrochim. Acta A. 2011. 79. P. 889.

Niazi A., Yazdanipour A., Ghasemi J., Amini A., Bozorgzad S., Kubista M. Spectrophotomet-ric investigation of the acidity constants of fluorescein in various water-organic solvent media // Chem. Eng. Comm. 2008. 195(10). P. 1257.

Gholivand M. B., Ghasemi J. B., Saaidpour S., Mohajeri A. Spectrophotometric study of the effects of surfactants and ethanol on the acidity constants of fluorescein // Spectrochim. Acta A 2008. 71(3) P.1158.

http://www-chemo.univer.kharkov.ua/kholin/clinp.html

Thamer B. J., Voigt A. F. The spectrophotometric determination of overlapping dissociation constants of dibasic acids. The acid constants of isophthalic, terephthalic and chloranilic acids // J. Phys. Chem. 1952. 56. P. 225.

Hu Y., Li W., Hu J. Resolving overlapped spectra with curve fitting // Spectrochim. Acta A 2005. 62. P. 16.

Practical guide to chemometrics (2nd ed.) / Ed. P. Gemperline. Boca Raton: Taylor & Francis Group, 2006, 520 p. ISBN 1-57444-783-1.

Malinowski, E.R., Statistical F-tests for abstract factor analysis and target testing // J. Chemom. 1988. 3. P. 49.

Jaumot J., Gargallo R., de Juan A., Tauler R. A graphical user-friendly interface for MCR-ALS: a new tool for multivariate curve resolution in MATLAB // Chemometr. and Intell. Lab. Systems. 2005. 76. P. 101.