Listar QA - Contribuciones a congresos científicos por título
Mostrando ítems 79-98 de 119
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OC-OT-LIBS: A novel approach to the chemical characterization of single particles
(2016-07-20)Spectral identification of individual micro- and nano-sized particles by the sequential intervention of optical catapulting, optical trapping and laser-induced breakdown spectroscopy is presented [1]. The three techniques ... -
Optimization of the mechanochemical synthesis of graphene oxide and its characterization. Application to the synthesis of magnetic graphene oxide.
(2023)Nowadays, the use of materials derived from graphene oxide (GO) is extended in the technologycal industry and research due to their excellent physico-chemical properties. This fact invites us to investigate a sustainable ... -
Optimization of the synthesis of functionalized magnetic nanoparticles and their characterization
(2015-12-21)Magnetic nanoparticles (MNPs), a new kind of nanometer-sized material, are widely used in the fields of biotechnology and biomedicine. These particles are superparamagnetic, which means that they are attracted to a magnetic ... -
Optimization of the synthesis of magnetic nanoparticles by solid sampling high resolution continuum source graphite furnace atomic absorption spectrometry and multi-response surface methodology
(2016-10-04)Magnetic nanoparticles (MNPs) are a new kind of nanometer-sized materials superparamagnetic with potential applications as magnetic carries for various biomedical uses, wastewater remediation, preconcentration of various ... -
Phosphorus remediation using a new magnetic system in aqueous samples
(2022-08)Phosphorus is a natural element that can be found in soils and aquatic ecosystems. Its presence over the recommended concentration, damages the hydrosphere equilibrium, through eutrophication. Consequently, there is a ... -
Phosphorus removal and recycled from tertiary effluent in sewage treatment plant using graphene modified with magnetic nanoparticles (M@GO).
(2023)Phosphorus is employed in detergents, as fertilizers in agriculture, etc. As a nutrient for plants, too much phosphorus can cause increased growth of algae and large aquatic plants, which can result in decreased levels of ... -
Polydispersity and fractionation in laser ablation studied by LIBS in an optical trap
(2019-09-23)LIBS characterization of aerosols produced by laser ablation of bulk samples is strongly influenced by variations of physicohemical properties of the elements integrating the matrix. Among the consequences of these changes ... -
Rapid Magnetic Dispersive solid phase extraction to preconcentration/determination of Cd and Pb in aqueous samples
(2019-07-11)A new magnetic dispersive solid phase extraction (MDSPE) method and graphite furnace atomic absorption spectrometry (GFAAS) have been combined for the analysis of Cd and Pb in environmental samples. For the preconcentration, ... -
Rapid magnetic microextraction to preconcentrate and determinate cadmium from environmental samples
(2019-05-29)A novel and greener ultrasonically assisted/modified cloud point extraction procedure for the preconcentration and extraction of trace cadmium from environmental samples was developed. The sorbent material was fabricated ... -
Remote Laser-Induced Breakdown Spectroscopy in Underwater Archaeology: Identification of Chemical Fingerprints in Shipwrecks
(2015-09-10)Nowadays, one of the most important areas of interest in archeology is the characterization of the submersed cultural heritage. Mediterranean Sea is rich in archaeological findings due to storms, accidents and naval battles ... -
Searching for Biosignatures in Mars by Differentiation of LIBS Molecular Signals
(2022)If there was life in the past on the Red Planet, specific biosignatures might still be present only if preservation conditions have been favourable for them [1]. The recognition of the habitable past on Mars increases the ... -
Searching for Biosignatures in Mars by LIBS Molecular Signals Discernment
(2021)In the present study, LIBS analysis of a set of six selected molecules related to organic biosignatures -or their degradation compounds- have been carried out in both simulated Martian atmosphere and air in order to identify ... -
Secondary ion mass spectrometry and low-energy ion scattering of II-V semiconductor hetero-structures
(Sociedad Española de Química Analítica, 2013)Comunicación oral presentada durante la XVIII reunión de la Sociedad Española de Química Analítica y VI reunión Nacional de la Sociedad Española de Espectrometría de MAsas -
Semiautomatic method for the ultra-trace arsenic speciation in environmental waters via magnetic solid phase extraction prior to HPLC-ICP-MS determination
(2021-01-08)A new magnetic functionalized material based on graphene oxide magnetic nanoparticles (MGO) was designed and characterized in order to develop a magnetic solid phase extraction method (MSPE) to enrich both inorganic and ... -
Sequential determination of heavy metals in environmental water samples by flow injection-chemical vapour generation-inductively coupled plasma mass spectrometry
(2013-12-19)The toxicity of “heavy metals” has been well recognized for a long time. Often the non-specific term “heavy metals” is used for three of the metals, cadmium, mercury and lead. These have large bioconcentration factors in ... -
Sequential determination of traces of As, Sb and hg by on-line magnetic solid phase extraction coupled with Hr-Cs-Cvg-Gfaas
(2017-09-21)A green and rapid method was developed for the simultaneous separation/preconcentration and sequential monitoring pf arsenic, antimony and mercury by flow injection magnetic solid phase extraction coupled with on-line ... -
Simultaneous determination of PT, PD, RH and IR traces in environmental samples by flow injection solid phase extraction coupled with online inductively coupled plasma atomic emission spectroscopy (ICP-AES)
(2014-07-23)An increased worldwide usage of platinum group elements (PGEs) has been observed during the last twenty years due to their applications in areas such as chemical industry, metallurgy, jewelry production, dental devices, ... -
Simultaneous enrichment of inorganic and organic species of lead, mercury and vanadium via magnetic solid phase extraction prior to HPLC-ICP-MS determination using a new functionalized patented nanomaterial
(X NyNA 2022, 2022-09)A novel magnetic functionalized nanomaterial based on graphene oxide and magnetic nanoparticles (MGO) was prepared and characterized by several spectroscopic and imaging techniques. This material was packed in a magnetic ... -
Simultaneous preconcentration and determination of trace metals (V, Ni, Ti, and Ga) in environmental samples by high resolution continuum source electrothermal atomic absorption spectrometry.
(2023)In this work is presented a simple, sensitive, low-cost method for direct and simultaneous determination of V, Ti, Ni and Ga by electrothermal atomic absorption spectrometer (ETAAS) in aqueous environmental samples (tap ... -
Single-shot laser-ionization mass spectrometry for direct atomic analysis
(2017-11-09)Direct laser ionization of solids (LIMS, laser-ionization mass spectrometry) represents a powerful way to get full atomic information about sample microlocations. Spatial resolutions as low a few microns are easily attainable ...