Determination of thermodynamic values of acidic dissociation constants and complexation constants of profens and their utilization for optimization of separation conditions by Simul 5 Complex.

作者: Martina Riesová , Jana Svobodová , Kateřina Ušelová , Zdeněk Tošner , Iva Zusková

DOI: 10.1016/J.CHROMA.2014.08.070

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摘要: Abstract In this paper we determine acid dissociation constants, limiting ionic mobilities, complexation constants with β-cyclodextrin or heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin, and mobilities of resulting complexes profens, using capillary zone electrophoresis affinity electrophoresis. Complexation parameters are determined for both neutral fully charged forms profens further corrected actual strength variable viscosity in order to obtain thermodynamic values constants. The accuracy obtained is verified by multidimensional nonlinear regression electrophoretic data, which provides the within one set measurements, NMR technique. A good agreement among all discussed methods was obtained. Determined were used as input simulations separation Simul 5 Complex. An excellent experimental simulated results achieved terms positions, shapes, amplitudes analyte peaks, confirming applicability Complex complex systems, physical–chemical Simultaneously, able demonstrate influence electromigration dispersion on efficiency, not possible common theoretical approaches, predict reversals profen peaks. We have shown that combination tool software can be optimization conditions

参考文章(93)
Nina Sadlej-Sosnowska, Lech Kozerski, Elżbieta Bednarek, Jerzy Sitkowski, Fluorometric and NMR Studies of the Naproxen–Cyclodextrin Inclusion Complexes in Aqueous Solutions Journal of Inclusion Phenomena and Macrocyclic Chemistry. ,vol. 37, pp. 383- 394 ,(2000) , 10.1023/A:1008114815223
Keiji Hirose, A Practical Guide for the Determination of Binding Constants Journal of Inclusion Phenomena and Macrocyclic Chemistry. ,vol. 39, pp. 193- 209 ,(2001) , 10.1023/A:1011117412693
Takeshi Hirokawa, Makoto Nishino, Nobuyuki Aoki, Yoshiyuki Kiso, Yasuyo Sawamoto, Takao Yagi, Jun-Ichi Akiyama, Table of isotachophoretic indices : I. Simulated qualitative and quantitative indices of 287 anionic substances in the range ph 3–10 Journal of Chromatography A. ,vol. 271, ,(1983) , 10.1016/S0021-9673(00)80225-3
Stephen A.C. Wren, Raymond C. Rowe, Theoretical aspects of chiral separation in capillary electrophoresis Journal of Chromatography A. ,vol. 603, pp. 235- 241 ,(1992) , 10.1016/0021-9673(92)85366-2
Martina Riesová, Vlastimil Hruška, Bohuslav Gaš, A nonlinear electrophoretic model for PeakMaster: II. Experimental verification Electrophoresis. ,vol. 33, pp. 931- 937 ,(2012) , 10.1002/ELPS.201100555
Sookie La, Jiyung Kim, Jung-Han Kim, Junichi Goto, Kyoung-Rae Kim, Simultaneous chiral discrimination of multiple profens by cyclodextrin‐modified capillary electrophoresis in normal and reversed polarity modes Electrophoresis. ,vol. 24, pp. 2642- 2649 ,(2003) , 10.1002/ELPS.200305450