The use of capillary electrophoresis with contactless conductivity detection for obtaining analytical and physicochemical parameters of peroxycarbonate, peroxyacids, and monoethyl pyrocarbonate.

• Grant number: 11/02156-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: January 01, 2012
• End date: December 31, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Claudimir Lucio Do Lago
• Grantee: Denis Tadeu Rajh Vidal
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This project aims the use of capillary electrophoresis with contactless conductivity detection for quantification and obtaining some physicochemical parameters of compounds with high rate of hydrolysis: peroxycarbonate, peroxyacids, and monoethyl pyrocarbonate. Physicochemical parameters such as kinetic and equilibrium constants, ion mobility, hydrodynamic radius, diffusion coefficient have been obtained successfully, by our group, via capillary electrophoresis for the monoalkyl carbonates, whose hydrolysis is also accentuated.Finally, we intend to perform parallel studies by 13C NMR for the equilibrium and kinetics constants. The results of these experiments by 13C NMR will be used for a comparison with the values of the constants found by capillary electrophoresis in order to evaluate our approach to obtain the constants using the technique of capillary electrophoresis as a kind of microreactor.

Scientific publications

(12)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DO LAGO, CLAUDIMIR LUCIO; RAJH VIDAL, DENIS TADEU; MENDONCA FRANCISCO, KELLITON JOSE; DOS SANTOS, VAGNER BEZERRA. A simple approach to compensate the suction caused by the electrospray ionization source in capillary electrophoresis-mass spectrometry systems. ELECTROPHORESIS, v. 35, n. 16, SI, p. 2412-2416, AUG 2014. (11/02156-2, 13/14993-1, 12/06642-1)

DOS SANTOS, VAGNER B.; VIDAL, DENIS T. R.; FRANCISCO, KELLITON J. M.; DUCATI, LUCAS C.; DO LAGO, CLAUDIMIR L.. Formation of isomers of anionic hemiesters of sugars and carbonic acid in aqueous medium. Carbohydrate Research, v. 428, p. 18-22, JUN 16 2016. (11/02156-2, 13/14993-1, 12/06642-1)

DA SILVA, IRANALDO SANTOS; RAJH VIDAL, DENIS TADEU; DO LAGO, CLAUDIMIR LUCIO; ANGNES, LUCIO. Fast simultaneous determination of trimethoprim and sulfamethoxazole by capillary zone electrophoresis with capacitively coupled contactless conductivity detection. JOURNAL OF SEPARATION SCIENCE, v. 36, n. 8, p. 1405-1409, APR 2013. (11/02156-2)

MONTES, RODRIGO H. O.; LIMA, ANA P.; DOS SANTOS, VAGNER B.; VIDAL, DENIS T. R.; DO LAGO, CLAUDIMIR L.; RICHTER, EDUARDO M.; MUNOZ, RODRIGO A. A.. Carbon-nanotube amperometric sensor for selective determination of 4-chloroaniline in commercial chlorhexidine solutions. SENSORS AND ACTUATORS B-CHEMICAL, v. 231, p. 38-44, AUG 2016. (11/02156-2, 13/14993-1, 12/06642-1)

VIDAL, DENIS T. R.; DO LAGO, CLAUDIMIR L.. Capillary electrophoresis with capacitively coupled contactless conductivity detection applied to the quantitation and to the determination of physical-chemical properties of peroxycarboxylates in aqueous medium. ELECTROPHORESIS, v. 34, n. 14, p. 7-pg., 2013-07-01. (12/06642-1, 11/02156-2)

VIDAL, DENIS T. R.; DO LAGO, CLAUDIMIR L.. Capillary electrophoresis with capacitively coupled contactless conductivity detection applied to the quantitation and to the determination of physical-chemical properties of peroxycarboxylates in aqueous medium. ELECTROPHORESIS, v. 34, n. 14, SI, p. 2065-2071, JUL 2013. (11/02156-2, 12/06642-1)

DANIEL, DANIELA; DOS SANTOS, VAGNER BEZERRA; RAJH VIDAL, DENIS TADEU; DO LAGO, CLAUDIMIR LUCIO. Determination of biogenic amines in beer and wine by capillary electrophoresis-tandem mass spectrometry. Journal of Chromatography A, v. 1416, p. 121-128, OCT 16 2015. (11/02156-2, 13/14993-1, 12/06642-1)

DO LAGO, CLAUDIMIR LUCIO; MENDONA FRANCISCO, KELLITON JOSE; DANIEL, DANIELA; RAJH VIDAL, DENIS TADEU; DOS SANTOS, VAGNER BEZERRA. A capillary electrophoresis/tandem mass spectrometry approach for the determination of monoalkyl carbonates. RSC ADVANCES, v. 4, n. 38, p. 19674-19679, 2014. (11/02156-2, 13/14993-1, 12/06642-1)

DANIEL, DANIELA; DOS SANTOS, VAGNER BEZERRA; RAJH VIDAL, DENIS TADEU; DO LAGO, CLAUDIMIR LUCIO. Determination of halosulfuron-methyl herbicide in sugarcane juice and tomato by capillary electrophoresis-tandem mass spectrometry. Food Chemistry, v. 175, p. 82-84, MAY 15 2015. (11/02156-2, 13/14993-1, 12/06642-1)

RAJH VIDAL, DENIS TADEU; AUGELLI, MARCIO ANTONIO; DO LAGO, CLAUDIMIR LUCIO. Determination of sildenafil and vardenafil by capillary zone electrophoresis using capacitively coupled contactless conductivity detection. ANALYTICAL METHODS, v. 5, n. 8, p. 2041-2045, 2013. (11/02156-2, 12/06642-1)

RAJH VIDAL, DENIS TADEU; SANTANA, MICHELE ALVES; HOTTA, GUILHERME MINORU; GODOI, MARLA NARCISO; EBERLIN, MARCOS NOGUEIRA; DO LAGO, CLAUDIMIR LUCIO. Probing the formation of monoalkyl carbonates and pyrocarbonates in water with electrospray ionization mass spectrometry. RSC ADVANCES, v. 3, n. 41, p. 18886-18893, 2013. (12/15467-9, 11/02156-2, 12/06642-1)

DO LAGO, CLAUDIMIR LUCIO; RAJH VIDAL, DENIS TADEU; MENDONCA FRANCISCO, KELLITON JOSE; DOS SANTOS, VAGNER BEZERRA. A simple approach to compensate the suction caused by the electrospray ionization source in capillary electrophoresis-mass spectrometry systems. ELECTROPHORESIS, v. 35, n. 16, p. 5-pg., 2014-08-01. (13/14993-1, 12/06642-1, 11/02156-2)