Zobrazeno 1 - 10 of 29 pro vyhledávání: '"José Y. Neira"'
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Akademický článek
Flow analysis by using solenoid valves for As(III) determination in natural waters by an on-line separation and pre-concentration system coupled to a tungsten coil atomizer
Autor: José Y. Neira, Jenny Mendoza, Carlos G. Bruhn
Publikováno v: Química Nova, Vol 28, Iss 2, Pp 217-223 (2005)
A flow system coupled to a tungsten coil atomizer in an atomic absorption spectrometer (TCA-AAS) was developed for As(III) determination in waters, by extraction with sodium diethyldithiocarbamate (NaDDTC) as complexing agent, and by sorption of the
Externí odkaz: https://doaj.org/article/a2b79e24b6344d08b2b7c46b5b6eb7a6
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4
Berberis microphylla G. Forst (Calafate) Berry Extract Reduces Oxidative Stress and Lipid Peroxidation of Human LDL
Autor: Andy J. Pérez, Claudia Radojkovic, Si Yen Chau, Daniela Nova, Lia Olivares-Caro, Claudia Mardones, José Y. Neira, Luis Bustamante
Publikováno v: Antioxidants, Vol 9, Iss 1171, p 1171 (2020)
Antioxidants
Volume 9
Issue 12
Calafate (Berberis microphylla G. Forst) is a Patagonian barberry very rich in phenolic compounds. Our aim was to demonstrate, through in vitro models, that a comprehensive characterized calafate extract has a protective role against oxidative proces
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50322bb26b4606cc06c35b61b019c3c8
https://www.mdpi.com/2076-3921/9/12/1171
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6
Confocal laser scanning microscopy as a novel tool of hyperspectral imaging for the localization and quantification of fluorescent active principles in pharmaceutical solid dosage forms
Autor: Mario I. Sanhueza, Joanna Tereszczuk, Germán Osorio, Carlos Peña-Farfal, Carlos von Plessing, José Y. Neira, Marcos Fernández, Manuel F. Meléndrez, Rosario Castillo
Publikováno v: Microchemical Journal. 168:106479
Confocal laser scanning microscopy (CLSM) supported with multivariate analysis is proposed as hyperspectral imaging technique to identify, locate, and quantify, in a direct way, active pharmaceutical ingredients (APIs) in synthetic tablets, with the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5cf2ff9a9521866744c65218aa90067
https://doi.org/10.1016/j.microc.2021.106479
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7
ANALYTICAL TESTING OF THE INTERFERENCE STANDARD METHOD (IFS) FOR METALS IN WINES BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY
Autor: José Y. Neira, Leonardo Bennun, Rodrigo A Vidal, Rosario Castillo, Elizabeth González, Carlos Peña-Farfal, Mónica Latorre
Publikováno v: Journal of the Chilean Chemical Society, Volume: 60, Issue: 3, Pages: 3083-3087, Published: SEP 2015
Journal of the Chilean Chemical Society v.60 n.3 2015
SciELO Chile
CONICYT Chile
instacron:CONICYT
An analytical testing study of interference standard method (IFS) for metals in wines with low and high residual sugar by inductively coupled plasma mass spectrometry (ICP-MS) was evaluated. Selection of IFS probes was based on the ions formed in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62c0327ef63b80546247383d4aeb7890
https://doi.org/10.4067/s0717-97072015000300023
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8
Fourier transform infrared imaging and quantitative analysis of pre-treated wood fibers: A comparison between partial least squares and multivariate curve resolution with alternating least squares methods in a case study
Autor: José Y. Neira, Rosario Castillo, Juan J. Araya, Juanita Freer, Renato Lajarim Carneiro
Publikováno v: Chemometrics and Intelligent Laboratory Systems. 195:103890
Pretreated lignocellulosic fibers were used as a case study to compare two chemometric methods for the quantification of chemical components in Fourier transformed infrared (FT-IR) images. Partial least squares (PLS) and multivariate curve resolution
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e406e56a9d469f8a0a65643063f14e5b
https://doi.org/10.1016/j.chemolab.2019.103890
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9
CHEMICAL CHARACTERIZATION OF SUB-BITUMINOUS COAL FROM THE ARAUCO PROVINCE - CHILE
Autor: Camila Rivera, Cesar Pino, Paola Méndez, Rodolfo Mundaca, Rosario Castillo, José Y. Neira, Carlos Peña-Farfal
Publikováno v: Journal of the Chilean Chemical Society, Volume: 61, Issue: 1, Pages: 2805-2808, Published: MAR 2016
Journal of the Chilean Chemical Society v.61 n.1 2016
SciELO Chile
CONICYT Chile
instacron:CONICYT
The chemical and sorptive characteristics of mineral coals extracted from a mine in Lebu (Biobio Region, Chile) and its derivatives were studied. These derivatives were obtained by applying a thermal treatment in an environment with N 2 and CO 2 at d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7c1d8815c3a04fb1164be242c782ad6
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000100012&lng=en&tlng=en
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10
Liquid carbon dioxide for improvements in online preconcentration and sample introduction in AAS
Autor: Andrea Campos, Alan Mercado, Jorge Yáñez, Héctor D. Mansilla, José Y. Neira, César Soto
Publikováno v: J. Anal. At. Spectrom.. 26:320-324
In this work liquid carbon dioxide in a flow system for better sample introduction and online preconcentration of copper, by means of Thermospray Flame Furnace-Atomic Absorption Spectrometry (TS-FF-AAS) has been used. Liquid carbon was used as pressu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f59ac178dd1d14215e210d68a124805
https://doi.org/10.1039/c0ja00072h
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