Results 41 to 50 of about 155,615 (245)

Electromembrane Extraction for Multiclass Pesticide Assessment in Soil Matrices: Sustainable Analytical Insights

Analysis &Sensing, Volume 6, Issue 2, March 2026.
The U‐shaped electromembrane extraction with liquid chromatography‐mass spectrometry enables rapid multiclass pesticide screening in soil. The 15 min, low‐solvent workflow achieves high recoveries and robust linearity, while AGREEprep and GAPI assessments highlight a greener profile compared to literature reports, which represents a smart strategy for ...
Rafael O. Martins, Gabriela G. Souza, Anne Varenne, Fanny d’Orlyé, Livia F. Sgobbi, Pedro V. V. Romanholo, Maria E. C. Queiroz, Bruno J. G. Silva, Virginia Damin, Andréa R. Chaves   +9 more
wiley   +1 more source

Condiciones de cristalización y diferenciación de las lavas del volcán El Metate (Campo Volcánico de Michoacán-Guanajuato, México)

Estudios Geologicos, 2014
El Metate es un volcán en escudo situado en el sector sur del Campo Volcánico de Michoacán-Guanajuato, uno de los dos campos volcánicos más grandes del Cinturón Volcánico Transmexicano.
E. Losantos, J. M. Cebriá, D. J. Morán-Zenteno, B. M. Martiny, J. López-Ruiz   +4 more
doaj   +1 more source

Comprehensive Analysis of the Degradation Phenomena of Proton Exchange Membrane Water Electrolyzers with Iridium on Antimony Tin Oxide Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study examines the structural and chemical evolution of low‐loaded Ir/ATO anodes during PEM water electrolysis under realistic conditions. Iridium dissolution is largely suppressed. In the early stages, both ionomer and support degradation are detected. Morphological reorganization occurs at the interface between the anode catalyst layer (ACL) and
Sambal Shashank Ambu, Nikolai Utsch, Tobias Morawietz, Maria Retuerto, Sergio Rojas, Oleg Usoltsev, Miriam Goll, Daniel García Sanchez, Andreas Glüsen, Aldo Saul Gago, Seyed Schwan Hosseiny, Kaspar Andreas Friedrich   +11 more
wiley   +1 more source

QSTR Modeling to Find Relevant DFT Descriptors Related to the Toxicity of Carbamates

Molecules, 2022
Compounds containing carbamate moieties and their derivatives can generate serious public health threats and environmental problems due their high potential toxicity.
Emma H. Acosta-Jiménez, Luis A. Zárate-Hernández, Rosa L. Camacho-Mendoza, Simplicio González-Montiel, José G. Alvarado-Rodríguez, Carlos Z. Gómez-Castro, Miriam Pescador-Rojas, Amilcar Meneses-Viveros, Julián Cruz-Borbolla   +8 more
doaj   +1 more source

3D‐Printed Geopolymer as a Basic Heterogeneous Catalyst for the Synthesis of α‐Cyanoacrylates Through the Knoevenagel Condensation

European Journal of Organic Chemistry, EarlyView.
3D‐printed geopolymers are presented as efficient and reusable heterogeneous catalysts for the Knoevenagel condensation. Under mild and green conditions, they promote the high‐yield synthesis of diverse α‐cyanoacrylates with remarkable stability and scalability.
Francesca T. Albino, Pedro A. M. Moro, Wanessa B. Menegaro, Luciano Senff, Marcus M. Sá, Dachamir Hotza   +5 more
wiley   +1 more source

Late sodic metasomatism evidences in bimodal volcanic rocks of the Acampamento Velho Alloformation, Neoproterozoic III, southern Brazil

Anais da Academia Brasileira de Ciências, 2007
A mineralogical study was carried out in mafic and felsic volcanic rocks of the Acampamento Velho Alloformation at Cerro do Bugio, Perau and Serra de Santa Bárbara areas (Camaquã Basin) in southern Brazil.
Delia Del Pilar M. de Almeida, Vitor P. Pereira, Adriane Machado, Henrique Zerfass, Ricardo Freitas   +4 more
doaj   +1 more source

Chemical Composition of the Eggs of the Freshwater Turtle Phrynops hilarii (Chelidae: Testudines) [PDF]

, 2019
At oviposition, amniote eggs contain all the nutrients required for complete neonate tissue development. For reptiles and birds, the egg yolk is the main embryonic energy source and is composed predominantly of proteins and lipids, while also providing ...
Bernardi, Cecilia Gabriela, Manzano, Adriana Silvina, Prieto, Yanina, Rozycki, Víctor Rodolfo   +3 more
core  

Fractionation and fluxes of metals and radionuclides during the recycling process of phosphogypsum wastes applied to mineral CO2 sequestration [PDF]

, 2015
The industry of phosphoric acid produces a calcium-rich by-product known as phosphogypsum, which is usually stored in large stacks of millions of tons.
Bolívar, Juan Pedro, Contreras, Manuel, Esquivias Fedriani, Luis María, Gázquez González, Manuel Jesús, Morales Flórez, Víctor, Pérez López, R., Santos, Alberto   +6 more
core   +2 more sources

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

Environmental Progress &Sustainable Energy, EarlyView.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti, Felipe Augusto Bueno Rossi, Jonatas Thiago Piva, Larissa Macedo dos Santos‐Tonial   +3 more
wiley   +1 more source

Multi-Template Molecularly Imprinted Polymers Coupled with a Solid-Phase Extraction System in the Selective Determination of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) in Environmental Water Samples

Separations
A simple, fast, and low-cost pre-concentration methodology based on the application of multi-template molecularly imprinted polymers (mt-MIP) in a solid-phase extraction system coupled with capillary electrophoresis was developed for the determination of
David Aurelio-Soria, Giaan A. Alvarez-Romero, Maria E. Paez-Hernandez, I. Perez-Silva, Miriam Franco-Guzman, Gabriela Islas, Israel S. Ibarra   +6 more
doaj   +1 more source