Buscar
Mostrando ítems 11-20 de 36
Characterization of a microemulsion system with AOT as pseudostationary phase in MEEKC for the analysis of estrogens
(Research Trends, 2013-11)
Microemulsion electrokinetic chromatography (MEEKC) is an electrodriven separation technique, which employs a microemulsion (ME) as pseudostationary phase (PSP) in capillary electrophoresis. In recent years, MEEKC has ...
Electrochemical methodology as an useful tool for the interfacial characterization of aqueous reverse micelles
(Wiley-Blackwell, 2019-12)
In this work, for the first time, the electrochemical behavior of hydroquinone (H2Q) by linear voltammetry in aqueous reverse micelles (RMs) of sodium 1,4-bis(2-ethylhexyl) sulfosuccinate (AOT)/n-heptane, as well in ...
Synthesis, spectroscopic properties and photodynamic activity of two cationic BODIPY derivatives with application in the photoinactivation of microorganisms
(Elsevier Masson, 2016-10)
Two cationic BODIPYs 3 and 4 were synthesized by acid-catalyzed condensation of the corresponding pyrrole and benzaldehyde, followed by complexation with boron and methylation. Compound 3 contains methyl at the 1,3,5 and ...
Influence of pH and micellar systems on the sensitized photo-oxidation of bovine serum albumin
(John Wiley & Sons Ltd, 2019-02)
Photosensitized oxidation of bovine serum albumin (BSA), by using perinaphtenone as a sensitizer, has been studied at pH 7.4 and 11. The selected sensitizer does not present ground-state complexation with BSA and ensures ...
A capillary electrophoresis system based on a novel microemulsion for the analysis fo Coenzyme Q10 in human plasma by electrokinetic chromatography
(Wiley VCH Verlag, 2009-01)
A new analytical method for determination of coenzyme Q10 (2,3-dimethoxy-5-methyl-6- decaprenyl-1,4-benzoquinone, CoQ10) in human plasma was developed based on CE using a double tensioactive microemulsion. CoQ10 was ...
Evidence of weak ferromagnetism in doped plasticized polyaniline (PANI-DDoESSA)0.5 from electron spin resonance measurements
(2013-03-20)
X-band electron spin resonance (ESR) measurements have been performed on a conducting free-standing film of polyaniline plasticized and protonated with di-n-dodecyl ester of sulfosuccinic acid (DDoESSA). The magnetic field ...
Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films
(2013-03-12)
It is shown that highly conducting films of polyaniline protonated with di-esters of sulfosuccinic and sulfophthalic acids which contain alkyl- or alkoxy-type substituents exhibit highly anisotropic structural, electrical ...
Well-Alloyed PtFe/C Nanocatalysts of Controlled Composition and Same Particle Size: Oxygen Reduction and Methanol Tolerance
(Electrochemical Soc Inc, 2009-01-01)
A study of the effect of iron concentration on the electrocatalysis of oxygen reduction reaction (ORR) on well-alloyed carbon-supported PtFe nanocatalysts with a controlled iron content and the same particle size is ...
Well-Alloyed PtFe/C Nanocatalysts of Controlled Composition and Same Particle Size: Oxygen Reduction and Methanol Tolerance
(Electrochemical Soc Inc, 2009-01-01)
A study of the effect of iron concentration on the electrocatalysis of oxygen reduction reaction (ORR) on well-alloyed carbon-supported PtFe nanocatalysts with a controlled iron content and the same particle size is ...
Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films
(2013-03-12)
It is shown that highly conducting films of polyaniline protonated with di-esters of sulfosuccinic and sulfophthalic acids which contain alkyl- or alkoxy-type substituents exhibit highly anisotropic structural, electrical ...