14 Art�culos

Quantification of the Synthetic Phenolic Antioxidant Cyanox 1790 in Bottled Water with SPE-HPLC/MS/MS and Determination of the Impact of the Use of Recycled Packaging on Its Generation

Acceso

en l�nea

Joaqu�n Hern�ndez-Fern�ndez, Rodrigo Ortega-Toro and John R. Castro-Suarez

One route of exposure to SPAs is through bottled water since the polymers used to make plastic bottles contain these SPAs, which migrate from the plastic to the water. Solid-phase extraction (SPE), HPLC-MS, FTIR, and DSC are used to identify and quantify... ver m�s

Revista: Water Formato: Electr�nico

Tabla de contenido: Vol: 15 Num: 0 Par: 5 A�o: 2023

Use of Sawdust (Aspidosperma polyneuron) in the Preparation of a Biocarbon-Type Adsorbent Material for Its Potential Use in the Elimination of Cationic Contaminants in Wastewater

Acceso

en l�nea

Rodrigo Ortega-Toro, �ngel Villabona-Ort�z, Candelaria Tejada-Tovar, Adriana Herrera-Barros and Daniela Cabrales-Sanjuan

Chemically modified bioadsorbents were prepared using sawdust (Aspidosperma polyneuron) functionalized with urea at different concentrations (BC-1M, BC-3M, and BC-6M) to evaluate their adsorption capacity by the methylene blue method. Fourier transform s... ver m�s

Revista: Water Formato: Electr�nico

Tabla de contenido: Vol: 15 Num: 0 Par: 21 A�o: 2023

Removal of Metals and Dyes in Water Using Low-Cost Agro-Industrial Waste Materials

Acceso

en l�nea

Candelaria Tejada-Tovar, �ngel Villabona-Ort�z and Rodrigo Ortega-Toro

The pollution of water bodies due to the discharge of effluents without treatment is a global problem. Therefore, different technologies have been implemented for the removal of contaminants from wastewater before the final disposition. Among them, adsor... ver m�s

Revista: Applied Sciences Formato: Electr�nico

Tabla de contenido: Vol: 13 Num: 0 Par: 14 A�o: 2023

Selective and Binary Adsorption of Anions onto Biochar and Modified Cellulose from Corn Stalks

Acceso

en l�nea

Candelaria Tejada-Tovar, �ngel Villabona-Ort�z, �ngel Dar�o Gonz�lez-Delgado, Adriana Herrera-Barros and Rodrigo Ortega-Toro

Water treatment alternatives such as adsorption using agricultural residues are currently being studied to eliminate pollutants that cause eutrophication in water bodies, avoiding the alteration of aquatic ecosystems. In this work, two bio-adsorbents wer... ver m�s

Revista: Water Formato: Electr�nico

Tabla de contenido: Vol: 15 Num: 0 Par: 7 A�o: 2023

Selective and Competitive Adsorption of Anions in Solution on Porous Adsorbent from Zea mays Steams: Kinetic and Equilibrium Study

Acceso

en l�nea

Angel Villabona-Ort�z, Rodrigo Ortega-Toro and Candelaria Tejada-Tovar

Surface modification can improve the adsorption capacity of biochar. Biochar was produced from corn stalks (Zea mays) by pyrolysis at 520 �C, activated with sulfuric acid (H2SO4) using impregnation ratios of biomass weight: volume 1:2 (B 1:2) and 1:3 (B ... ver m�s

Revista: Water Formato: Electr�nico

Tabla de contenido: Vol: 14 Num: 0 Par: 18 A�o: 2022

Certificaci�n de un material de referencia de carne en base a un estudio de colaboraci�n

Acceso

en l�nea

Claudia Marcela Salazar Arzate, Laura Regalado, Alberto Pazos, Enrique Vivino, Vania Garc�a, Mar�a Rosa Pantoja, Eliana Rocha, Patricia Vacaflor, Rodrigo Casiano, M�nica Regina Cucatti, Luciana Miyagushu, Renata Sousa, Thais Uekane, Monique Gon�alves de Melo, Xiomara Acevedo, Elizabeth Jim�nez, Linda Patricia Jim�nez, Myriam Jessel Rivera, Pedro Hern�n Torres, Elena Larrea, Luc�a Navas, Susana Silva, Andrene Phillips, Dwight Random, Steve Acco, Ana Ramos, Christian Uribe, Galia Ticona, Cristina Toro, Lorena Francini, Rosana Reinares P�g. 5 - 15

Mediante un proyecto de colaboraci�n, se llevaron a cabo estudios de comparaci�n para mejorar la capacidad de medici�nde los laboratorios participantes, apoy�ndolos en la producci�n, caracterizaci�n y distribuci�n de materiales de referencia delsector ag... ver m�s

Revista: Innotec Formato: Electr�nico

Tabla de contenido: Vol: 0 Num: 7 Par: 0 A�o: 2012

Taller de contextoNivel 6. Ciclo Basico. Semestre Oto�o 1993.

Acceso

en l�nea

M. Adriana Gebauer M., Sandra Jiron T., Rodrigo Toro A. P�g. 80 - 87

Revista: Cuadernos de Arquitectura Formato: Electr�nico

Tabla de contenido: Vol: PP Num: 2 Par: 0 A�o: 1993

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