Spectrophotometric and electrophoretic studies on character of interactions between iron(II)-(α-diimine) chelates and (anionic, neutral, cationic) micelles

Oszwałdowski, Sławomir; Kuszewska, Weronika

doi:10.1016/j.colsurfa.2003.11.009

Cited by 6 publications

(2 citation statements)

References 39 publications

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“…The authors noted that the partition coefficient has been used to describe metal‐chelate behaviour 84. Also, MEKC has been used to calculate the binding constant between cationic ligands and SDS micelles 85–87. The capacity factor ( k ′) for both neutral and charged complexes/ligands was calculated from Eqs.…”

Section: Prediction Of Solute Characteristics and Methods Conditionsmentioning

confidence: 99%

Recent advances in the methodology, optimisation and application of MEEKC

et al. 2009

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MEEKC is an electrodriven separation technique. Oil-in-water microemulsions (MEs) and to a lesser extent water-in-oil MEs have been used in MEEKC as BGEs to achieve separation of a diverse range of solutes. The more common (oil-in-water) MEs are composed of nanometre-sized droplets of oil suspended in an aqueous buffer. Interfacial tension between the oil and aqueous phase is reduced close to zero by the presence of a surfactant and a co-surfactant. MEEKC is capable of providing fast and efficient separations for a wide range of acidic, basic and neutral, water-soluble and -insoluble compounds. This review details the advances in MEEKC-based separations from the period 2006 to 2008. Areas covered include online sample concentration, chiral separation, suppressed electroosmosis MEEKC, MEEKC-MS, and the use of MEEKC in predicting migration behaviour and solute characteristics. A fundamental introduction to MEEKC, along with the presentation and discussion of recent applications is also included.

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Section: Prediction Of Solute Characteristics and Methods Conditionsmentioning

confidence: 99%

Recent advances in the methodology, optimisation and application of MEEKC

et al. 2009

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“…Complexation of DNA with Fe(II) and Fe(III) was compared using specific binding constants determined by affinity CE [241]. Different CE techniques were applied to calculate the binding constants of the Fe(II)(a-diimine) chelates to SDS micelles [124,242,243] and inorganic anions and cations with zwitterionic surfactants [125].…”

Section: Study Of Chemical Reactionsmentioning

confidence: 99%

Recent trends in CE of inorganic ions: From individual to multiple elemental species analysis

Timerbaev

2007

Electrophoresis

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The major methodological developments in CE related to inorganic analysis are overviewed. This is an update to a previous review article by the author (Timerbaev, A. R., Electrophoresis 2004, 25, 4008-4031) and it covers the review work and innovative research papers published between January 2004 and the first part of 2006. As was underlined in that review, a growing interest of analytical community in providing elemental speciation information found a sound response of the CE method developers. Presently, almost every second research paper in the field of interest deals with element species analysis, the use of inductively coupled plasma MS detection and biochemical applications being the topics of utmost research efforts. On the other hand, advances in general methodology traditionally centered on a CE system modernization for improvements in sensitivity and separation selectivity have attracted less attention over the review period. While there is no indication that inorganic ion applications would surpass by the developmental rate the more matured analysis of organic analytes, CE can now be seen as an analytical technique to be before long customary in a number of inorganic analysis arenas.

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Application of micellar and microemulsion electrokinetic chromatography for characterization of gallium(III) complexes of pharmaceutical significance

Timerbaev

Vasylenko

Foteeva

et al. 2007

J of Separation Science

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CE with conventional UV detection has recently been shown as a highly effective means to assaying cytotoxic gallium(III)-based compounds with regard to desirable drug-like properties such as the stability and binding to serum proteins. In this extension of that work, different CE techniques are used to further characterize a given set of gallium coordination compounds with established antiproliferating efficacy. Using free-zone CE mode, the electrophoretic profiles of complexes are recorded in order to assess their actual charge state under physiological buffer conditions. Micellar and microemulsion electrokinetic chromatographic techniques are tested as tools for the rapid estimation of the n-octanol-water partition coefficient (log P) that provides a rationale estimate of a drug's ability to cross biological membranes. A range of electrolyte buffer systems with varying (both in the nature and concentration) organic modifiers are examined to evaluate their effect on the relationship between experimental or calculated log P and the retention factors of compounds (log k'). Both methods were found to be better applicable for neutral than for cationic Ga complexes, the microemulsion mode demonstrating superior lipophilicity estimations as well as statistically meaningful log P versus log k' correlations when all the complexes were included in one regression set.

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Spectrophotometric and electrophoretic studies on character of interactions between iron(II)-(α-diimine) chelates and (anionic, neutral, cationic) micelles

Cited by 6 publications

References 39 publications

Recent advances in the methodology, optimisation and application of MEEKC

Recent advances in the methodology, optimisation and application of MEEKC

Recent trends in CE of inorganic ions: From individual to multiple elemental species analysis

Application of micellar and microemulsion electrokinetic chromatography for characterization of gallium(III) complexes of pharmaceutical significance

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