Results 101 to 110 of about 140,762 (162)

Reflexions sobre l'aportació de la química analítica a l'estudi del medi ambient [PDF]

open access: yes, 1986
La contaminació sol expressar-se en espècies químiques concretes, cosa que indueix una relació reversible entre la contaminació i la Química, donant lloc a nombrosos equívocs, com és el cas que alguns químics analistes prenen la iniciativa per a ...
Obiols i Salvat, Josep   +1 more
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Chemistry in the laser-induced plasma [PDF]

open access: yes, 2016
Since the first uses of LIBS, it is known that the laser induced plasma, as many other atom reservoirs, is a dynamic system that evolves rapidly to stable species after the end of the laser pulse.
Laserna-Vázquez, José Javier
core  

Efficient Removal of Tetracyclines and Their Metabolites from Wastewater Using Purified Stevensite: Adsorption Capacity, Reusability, and Antibiotic Decontamination

open access: yesAntibiotics
Background/Objectives: The persistence of tetracycline residues in aquatic environments poses substantial risks to ecosystems and public health, emphasizing the need for effective removal strategies. This study examines the use of purified stevensite (ST)
Noelia García-Criado   +5 more
doaj   +1 more source

Simultaneous determination of traces of PT, PD, OS, IR, RH, AG and AU by using magnetic nanoparticles solid phase extraction coupled with ICP OES [PDF]

open access: yes, 2017
The direct analysis of these target analytes is very limited being essential sample pre-treatment techniques and the use of very sensitive instrumental techniques to carry out determinations.
Cano-Pavón, José Manuel   +3 more
core  

LIBS spectroscopy meets the ocean. Chemical analysis of archeological materials in Mediterranean waters [PDF]

open access: yes, 2015
After decades of development in laboratories and land operations, chemical analysis of submerged objects is starting to become a reality. While the analysis of water at variable depth has been demonstrated in the past using florescence spectroscopy and ...
Laserna-Vázquez, José Javier
core  

Adsorption of Macrolide Antibiotics and a Metabolite onto Polyethylene Terephthalate and Polyethylene Microplastics in Aquatic Environments

open access: yesAntibiotics
Microplastics (MPs) and antibiotics are emerging pollutants widely found in aquatic environments, potentially causing environmental harm. MPs may act as carriers for antibiotics, affecting their environmental distribution.
Carmen Mejías   +5 more
doaj   +1 more source

Characterization of Laser-Induced Plasmas Of Organic Compounds by spatially- and temporally resolved optical emission spectrometry [PDF]

open access: yes, 2014
The large majority of laser-induced plasmas experiments are performed on metals in air at atmospheric pressure, where recombination mechanisms do not play a significant role, as the primary emission lines of interest are significantly more intense than ...
Laserna-Vázquez, José Javier   +3 more
core  

Assessment of the effect of pomegranate seed extracts on prostate cancer through cellular and animal models

open access: yesScientific Reports
Pomegranate seed is a high-protein food by-product with demonstrated in vitro antioxidant activity. In this work, we evaluated the effect of pomegranate seed protein isolates (PIs) and hydrolysates, obtained with high-intensity focused ultrasounds (HIFU)
Miriam Guzmán-Lorite   +4 more
doaj   +1 more source

OC-OT-LIBS: A novel approach to the chemical characterization of single particles [PDF]

open access: yes, 2016
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 are used for different purposes.
Fortes, Francisco Javier   +2 more
core  

Elaboración del manual de química inorgánica y guia de tratamiento de residuos peligrosos (RESPEL) [PDF]

open access: yes, 2012
La química cumple un papel importante en la vida del hombre a nivel personal e industrial por sus múltiples campos de acción tales como la orgánica , inorgánica, fisicoquímica, bioquímica y química analítica, el presente estudio se centrará en la química
Echeverry L., Luisa Fernanda   +1 more
core  

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