Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Eugenio O. Reyes-salas"'
Autor:
José A. Manzanilla-Cano, Manuel H. Barceló-Quintal, Margarita Reyes-Salas, Eugenio O. Reyes-salas, Daniel Juárez‐Mendoza
Publikováno v:
Analytical Letters. 39:161-171
In this work an electrochemical method is evaluated for direct hydroxymethylfurfural (HMF) content determination in untreated honey samples. The HMF presented a single, well‐defined reduction signal at −1100 mV vs. Ag/AgCl. Borate was confirmed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1cd3d5e9b1965ef0095e4141eb1717f
https://doi.org/10.1080/00032710500423476
https://doi.org/10.1080/00032710500423476
Autor:
Juan Ramírez‐Balderas, Eugenio O. Reyes-salas, Manuel H. Barceló-Quintal, José A. Manzanilla-Cano
Publikováno v:
Analytical Letters. 37:463-472
Indigo has been used for thousands of years to color and paint different substrates, including medicines, food, cosmetics, and textiles. Its commercial importance has led to development of a number of quantitative determination procedures based on ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec8f81fed3fb94938fa4ffc4978b7f00
https://doi.org/10.1081/al-120028619
https://doi.org/10.1081/al-120028619
Autor:
José A. Manzanilla-Cano, M. A. Dosal-Gómez, Manuel H. Barceló-Quintal, Eugenio O. Reyes-salas
Publikováno v:
Analytical Letters. 35:123-133
A description is made of determination of Ni (II), Co (II), Sb (III), and As (V) in a mining aqueous sample with complex chemical composition by differential pulse voltammetry (DPV) at a static mercury drop electrode (SMDE). The analyzed sample conta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0acd62e1094228036cf897c1b9d69e52
https://doi.org/10.1081/al-120002366
https://doi.org/10.1081/al-120002366
Autor:
M. A. Dosal-Gómez, José A. Manzanilla-Cano, Manuel H. Barceló-Quintal, L. Rangel-Ordoñez, Eugenio O. Reyes-salas
Publikováno v:
Analytical Letters. 35:971-984
Arnica montana is a medicinal plant. Its biological activity is related to carboxyphenolic acids such as caffeic acid. This paper proposes a caffeic acid quantification method of Arnica montana tinctures by lineal sweep voltammetry with a platinum ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::260abf7fca5b713646c451b0a5f0c69d
https://doi.org/10.1081/al-120004549
https://doi.org/10.1081/al-120004549
Autor:
J. L. García-Martínez, Fernando Ortega-Gutiérrez, Leticia A. Alba-Aldave, Patricia Girón-García, Jasinto Robles-Camacho, Adela M. Reyes-Salas, Daniel Flores-Gutiérrez, Eugenio O. Reyes-salas, Karina Elizabeth Cervantes-de la Cruz, Consuelo Macías-Romo
Publikováno v:
Universidad Nacional Autónoma de México
UNAM
Redalyc-UNAM
Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.34
UNAM
Redalyc-UNAM
Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.34
Petrographic, chemical and mineralogical studies were performed on a fulgurite formed by melting of soil by lightning strike located at San José de Lourdes, northeast of Fresnillo, State of Zacatecas, Mexico. Polarizing microscopy, scanning electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57ea10be86629cfc1379e2ae873f8840
https://doi.org/10.22201/cgeo.20072902e.2017.3.477
https://doi.org/10.22201/cgeo.20072902e.2017.3.477
Autor:
Eugenio O. Reyes-salas, José A. Manzanilla-Cano, Manuel H. Barceló-Quintal, J. Flores-Rodríguez
Publikováno v:
Analytical Letters. 34:2349-2360
A procedure to determine cadmium, lead, zinc and copper in urban aerosol samples was developed. Differential-pulse anodic stripping voltammetry (DPASV) at a hanging mercury drop electrode (HMDE) was used as the analytical method, and accuracy of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ecf77e6d3e212b26803622c9f299f3
https://doi.org/10.1081/al-100107300
https://doi.org/10.1081/al-100107300
Autor:
Manuel H. Barceló-Quintal, Eugenio O. Reyes-salas, José A. Manzanilla-Cano, Julio Flores-Rodríguez
Publikováno v:
International Journal of Environmental Analytical Chemistry. 80:115-127
The electrochemical behavior of methylparathion under UV irradiation was monitored by polarography in an aqueous medium (pH 6.5) at 254 and 366 nm, and the effects of atmospheric oxygen and TiO2 on methylparathion were also looked at. Dissapearance o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aa080f3fe206a0f7d6f5eeb86be28f8
https://doi.org/10.1080/03067310108044377
https://doi.org/10.1080/03067310108044377
Publikováno v:
International Journal of Environmental Analytical Chemistry. 75:387-405
One of the most important transformation reactions of methylparathion, an organophosphorus pesticide, was studied. The redox transformation of methylparathion was carried out using different electrochemical methods in an aqueous medium. The study was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ea35c54f29f1cdcfd69f50d98f795b2
https://doi.org/10.1080/03067319908047325
https://doi.org/10.1080/03067319908047325
Publikováno v:
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes. 39(4)
A study was undertaken to determine the effect of Cu(II) in degradation of methylparathion (o,o-dimethyl o,4-nitrophenyl phosphoriotioate) in acid medium. Initial electrochemical characterization of Cu(II) and methylparathion was done in an aqueous m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::307c70fe898dca7d545c609fdf8d042e
https://pubmed.ncbi.nlm.nih.gov/15473638
https://pubmed.ncbi.nlm.nih.gov/15473638