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Atomic fluorescence spectrometry : a suitable detection technique in speciation studies for arsenic, selenium, antimony and mercury
Sánchez-Rodas Navarro, Daniel Alejandro
; Corns, W. T.; Chen, B.; Stockwell, P. B. (Royal Society of Chemistry, 2010-04)
Atomic Fluorescence Spectrometry (AFS) is an ideal detection technique for speciation studies concerning hydride forming elements (mainly As, Se and Sb) and Hg. The analytical features of AFS, such as detection limits below ... -
Exclusive Aromatic vs Aliphatic C-H Bond Functionalization by Carbene Insertion with Gold-based Catalysts
Rivilla de la Cruz, Iván; Gómez Emeterio, Bella Pilar; Romero Fructos-Vázquez, Manuel; Díaz Requejo, María Mar; Pérez Romero, Pedro José (American Chemical Society, 2011)
The direct functionalization of aromatic C-H bonds by carbene insertion from diazocompounds catalyzed by gold complexes with N-heterocyclic ligands is described. The reaction is completely selective toward the Csp2-H bonds, ... -
Adaptación de las prácticas de Análisis Instrumental al Espacio de Convergencia Europeo. Elaboración de Material Didáctico
Sayago Gómez, Ana; Hernanz Vila, Dolores; Gallo Mazzuchino, María Valeria; Beltrán Lucena, Rafael (Centro de Información Tecnológica, 2011-02)
En este trabajo se presenta el desarrollo de un proyecto de innovación educativa realizado por un equipo docente del Área de Química Analítica de la Universidad de Huelva en España como parte de la asignatura Análisis ... -
Direct, Copper-Catalyzed Oxidation of Aromatic C-H Bonds with Hydrogen Peroxide under Acid-Free Conditions
Conde Alcántara, Ana Isabel; Díaz Requejo, María Mar; Pérez Romero, Pedro José (Royal Society of Chemistry, 2011-06)
The direct oxidation of benzene into phenol using hydrogen peroxide has been achieved in the absence of any acid with TpxCu(NCMe) complexes as the catalysts. In the case of anthracenes as the substrates, valuable ... -
Biological responses related to agonistic, antagonistic and synergistic interactions of chemical species
García Barrera, Tamara; Gómez Ariza, José Luis; González Fernández, Macarena; Moreno Roldán, Fernando; García Sevillano, Miguel Ángel; Gómez Jacinto, Verónica (Springer Verlag, 2012)
The fact that the essential or toxic character of elements is species specific has encouraged the development of analytical strategies for chemical speciation over the last twenty years; indeed, there are now a great number ... -
Promoter Trapping in Microalgae Using the Antibiotic Paromomycin as Selective Agent
Vila Spinola, Marta; Díaz Santos, Encarnación; Vega Naranjo, Marta de la; Rodríguez, Herminia; Vargas, María Ángeles; León Bañares, Rosa María (MDPI, 2012-12)
The lack of highly active endogenous promoters to drive the expression of transgenes is one of the main drawbacks to achieving efficient transformation of many microalgal species. Using the model chlorophyte Chlamydomonas ... -
Simultaneous speciation and preconcentration of ultra trace concentrations of mercury and selenium species in environmental and biological samples by hollow fiber liquid phase microextraction prior to high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry
Moreno Roldán, Fernando; García Barrera, Tamara; Gómez Ariza, José Luis (Elsevier, 2013)
Nowadays, hollow fiber membrane extraction techniques are widely used due to the high enrichment factors obtained with many different types of analytes and samples. In this paper, we propose a new analytical method that ... -
Complete Genome Sequence of a Pseudomonas putida Clinical Isolate, Strain H8234
(American Society for Microbiology, 2013-07)We report the complete genome sequence of Pseudomonas putida strain H8234, which was isolated from a hospital patient presenting with bacteremia. This strain has a single chromosome (6,870,827 bp) that contains 6,305 open ... -
Effect of Selenate on Viability and Selenomethionine Accumulation of Chlorella sorokiniana Grown in Batch Culture
Gojkovic, Živan; Vílchez Lobato, Carlos; Torronteras Santiago, Rafael; Vigara Fernández, Javier; Gómez Jacinto, Verónica; Janzer, Nora; Gómez Ariza, José Luis; Márová, Ivana; Garbayo Nores, Inés (Hindawi Publishing Corporation, 2014)
The aim of this work was to study the effect of Se(+VI) on viability, cell morphology, and selenomethionine accumulation of the green alga Chlorella sorokiniana grown in batch cultures. Culture exposed to sublethal Se ... -
A multiple hollow fibre liquid-phase microextraction method for the determination of halogenated solvent residues in olive oil
Manso Sayago, José Manuel; García Barrera, Tamara; Gómez Ariza, José Luis (Springer Verlag, 2014)
The present paper describes a method based on the extraction of analytes by multiple hollow fibre liquid-phase microextraction and detection by ion-trap mass spectrometry and electron capture detectors after gas chromatographic ... -
Simultaneous speciation of selenoproteins and selenometabolites in plasma and serum by dual size exclusion-affinity chromatography with online isotope dilution inductively coupled plasma mass spectrometry
García Sevillano, Miguel Ángel; García Barrera, Tamara; Gómez Ariza, José Luis (Springer Verlag, 2014)
A method for the simultaneous speciation of selenoproteins and selenometabolites in mouse plasma has been developed based on in series two-dimensional size exclusion and affinity high-performance liquid chromatography ... -
Antagonistic interaction of selenomethionine enantiomers on methylmercury toxicity in the microalgae Chlorella sorokiniana
Moreno Roldán, Fernando; García Barrera, Tamara; Gómez Jacinto, Verónica; Gómez Ariza, José Luis; Garbayo Nores, Inés; Vílchez Lobato, Carlos (Royal Society of Chemistry, 2014)
The protective effect of selenium against mercury toxicity is well known especially between selenomethionine and methylmercury and it has been studied in several living organisms, however information is lacking about the ... -
Arsenic metabolites in human serum and urine after seafood (Anemonia sulcata) consumption and bioaccessibility assessment using liquid chromatography coupled to inorganic and organic mass spectrometry
Contreras Acuña, Manuel; García Barrera, Tamara; García Sevillano, Miguel Ángel; Gómez Ariza, José Luis (Elsevier, 2014)
The present paper reports for the first time the bioaccessibility of arsenic species in Anemonia sulcata and its metabolization in the human body after the ingestion of this seafood, a delicacy highly appreciated in the ... -
Cadmium toxicity in Mus musculus mice based on metallomic and metabolomic approaches. Antagonistic interaction between Se and Cd in the bloodstream
García Sevillano, Miguel Ángel; García Barrera, Tamara; Gómez Ariza, José Luis; Navarro, Francisco (Royal Society of Chemistry, 2014)
Cadmium (Cd) is an important inorganic toxicant in the environment which impacts on human health. A metallomic approach based on size-exclusion chromatography (SEC) coupled to inductively coupled plasma-mass spectrometry ... -
Speciation of selenium in pleurotus ostreatus and lentinula edodes Mushrooms
Assunção, Laélia Soares de; Fernández, M. G.; García Barrera, Tamara; Gómez Ariza, José Luis; Kasuya, M. C. M. (Bioinfo Publications, 2014)
Pleurotus ostreatus and Lentinula edodes are two of the most commercialized mushrooms species in the world and exhibit the potential to accumulate selenium (Se). The form of Se in the protein extracts of P. ostreatus and ... -
Omics technologies and their applications to evaluate metal toxicity in mice M. spretus as a bioindicator
García Sevillano, Miguel Ángel; García Barrera, Tamara; Abril, Nieves; Pueyo, Carmen; López Barea, Juan; Gómez Ariza, José Luis (Elsevier, 2014)
Metals are important components of living organisms since many biological functions critically depend on their interaction with some meta l in the cell. However, human activities have increased toxic metal levels in the ... -
Absolute quantification of superoxide dismutase in cytosol and mitochondria of mice hepatic cells exposed to mercury by a novel metallomic approach
García Sevillano, Miguel Ángel; García Barrera, Tamara; Navarro, Francisco; Gómez Ariza, José Luis (Elsevier Masson, 2014)
In the last years, the development of new methods for analyzing accurate and precise individual metalloproteins is of increasing importance, since numerous metalloproteins are excellent biomarkers of oxidative stress and ... -
A combination of metallomics and metabolomics studies to evaluate the effects of metal interactions in mammals. Application to Mus musculus mice under arsenic/cadmium exposure
García Sevillano, Miguel Ángel; García Barrera, Tamara; Navarro Roldán, Francisco Juan; Montero Lobato, Zaida; Gómez Ariza, José Luis (Elsevier, 2014)
Arsenic and cadmium are toxic metals of environmental significance with harmful effects on man. To study the toxicological and biochemical effects of arsenic/cadmium in mammals a combined metallomic and metabolomic approach ... -
Development of a metabolomic approach based on urine samples and direct infusion mass spectrometry
González Domínguez, Raúl; Castilla Quintero, Rocío; García Barrera, Tamara; Gómez Ariza, José Luis (Elsevier, 2014)
The analysis of urine by direct infusion mass spectrometry suffers from ion suppression due to its high salt content and inter-sample variability caused by the differences in urine volume between persons. Thus, urine ...
