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18 p, 3.3 MB |
Effect of the Exogenous Application of Different Concentrations of Indole-3-Acetic Acid as a Growth Regulator on Onion (Allium cepa L.) Cultivation
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Solano Porras, Carlos (Universidad Nacional del Centro del Perú) ;
Artola Casacuberta, Adriana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Barrena Gómez, Raquel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Ballardo Matos, Cindy Vanessa (Universidad Nacional del Centro del Perú) ;
Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Indole-3-acetic acid (IAA) is a key plant hormone that plays crucial roles in plant growth and development. This study investigated the effects of exogenous application of IAA as a growth regulator in onion cultivation (Allium cepa L. [...]
2023 -  10.3390/agronomy13092204
Agronomy, Vol. 13, Issue 9 (September 2023) , art. 2204
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21 p, 538.2 KB |
Development and application of an electronic tongue for detection and monitoring of nitrate, nitrite and ammonium levels in waters
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Nuñez, L. (Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica (Brazil)) ;
Cetó Alsedà, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ;
Pividori, María Isabel (Universitat Autònoma de Barcelona. Departament de Química) ;
Zanoni, Maria Valnice (Universidade Estadual Paulista. Instituto de Química. Departamento de Química Analítica (Brazil)) ;
Valle Zafra, Manuel del (Universitat Autònoma de Barcelona. Departament de Química)
This work presents the first study and development of an electronic tongue analysis system for the monitoring of nitrogen stable species: nitrate, nitrite and ammonium in water. The electronic tongue was composed of an array of 15 potentiometric poly(vinyl chloride) membrane sensors sensitive to cations and anions plus an artificial neural network (ANN) response model. [...]
2013 - 10.1016/j.microc.2013.04.018
Microchemical Journal, Vol. 110 (September 2013) , p. 273-279
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7 p, 235.3 KB |
Proposta didàctica : obtenció de nanopartícules de plata a partir d'extracte de te verd
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Colom i Bussot, Juli (Institut Baix Empordà) ;
Solís i Busquets, Aleix (Institut Baix Empordà) ;
Olivella Costa, Àngels (Institut Baix Empordà) ;
Fiol Santaló, Núria (Universitat de Girona. Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària)
En els darrers temps ha adquirit gran importància la síntesi de nanopartícules metàl·liques a partir d'extractes naturals fornint mètodes de preparació més respectuosos amb el medi ambient (l'anomenada "síntesi verda"). [...]
In recent times, the synthesis of metal nanoparticles from natural extracts has become veryimportant, providing more environmentally friendly preparation methods (the so-called "green synthesis"). Many plant extracts have been used to obtain nanoparticles, mainly silver and gold. [...]
En los últimos tiempos ha adquirido gran importancia la síntesis de nanopartículas metálicas a partir de extractos naturales proporcionando métodos de preparación más respetuosos con el medio ambiente (la llamada "síntesis verde"). [...]
2023 - 10.5565/rev/ciencies.434
Ciències : revista del professorat de ciències de primària i secundària, Núm. 45 (2023) , p. 48-54 (Experiències didàctiques i treballs pràctics)
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12 p, 754.9 KB |
Nitrite and nitrate inhibition thresholds for a glutamate-fed bio-P sludge
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Rey-Martínez, Natalia (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Merdan, Gökçe (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Guisasola, Albert (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Baeza Labat, Juan Antonio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Enhanced biological phosphorus removal (EBPR) is an efficient and sustainable technology to remove phosphorus from wastewater. A widely known cause of EBPR deterioration in wastewater treatment plants (WWTPs) is the presence of nitrate/nitrite or oxygen in the anaerobic reactor. [...]
2021 - 10.1016/j.chemosphere.2021.131173
Chemosphere, Vol. 283 (November 2021) , art. 131173
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9 p, 810.9 KB |
Nitrate reduction by redox-activated, polydiallyldimethylammonium-exchanged ferruginous smectite
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Su, Kai (Southwest Jiaotong University) ;
Radian, Adi (Hebrew University of Jerusalem) ;
Mishael, Yael (Hebrew University of Jerusalem) ;
Yang, Lizhong (Southwest Jiaotong University) ;
Stucki, Joseph W. (University of Illinois)
Nitrate is linked to chronic human illness and to a variety of environmental problems, and continues to be a contaminant of concern in soils and natural waters. Improved methods for nitrate abatement, thus, are still needed. [...]
2012 - 10.1346/CCMN.2012.0600503
Clays and Clay Minerals, Vol. 60, Núm. 5 (2012) , p. 464-472
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8 p, 679.2 KB |
Nitrate removal by calcined Hydrotalcite-type compounds
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Soías-Viciana, María M. (University of Almería. Department of Inorganic Chemistry) ;
Ureña-Amate, María D. (University of Almería. Department of Inorganic Chemistry) ;
González-Pradas, Emilio (University of Almería. Department of Inorganic Chemistry) ;
García-Cortéz, María J. (University of Almería. Department of Inorganic Chemistry) ;
López-Teruel, Cristina (University of Almería. Department of Inorganic Chemistry)
The sorption of nitrate ions on calcined hydrotalcite-type compounds at 550°C (HT550), 650°C ((HT650), and 850°C (HT850) from pure water solution at 25°C has been studied. The influence of the temperature was also investigated for the sample calcined at 850°C by studying the sorption process at 10 and 40°C. [...]
2008 - 10.1346/CCMN.2008.0560101
Clays and Clay Minerals, Vol. 56, Núm. 1 (2008) , p. 2-9
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16 p, 1.8 MB |
Dissimilatory nitrate/nitrite reduction processes in river sediments across climatic gradient : influences of biogeochemical controls and climatic temperature regime
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Li, Xiaofei (Fujian Normal University. Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education) ;
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Hou, Lijun (East China Normal University. State Key Laboratory of Estuarine and Costal Research) ;
Gao, Dengzhou (East China Normal University. School of Geographic Sciences) ;
Liu, Min (East China Normal University. School of Geographic Sciences) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Dissimilatory nitrate/nitrite reduction processes play an important role in controlling nitrogen loading in river environments. However, the relative importance of climatic temperature regime and biogeochemical controls to dissimilatory nitrate/nitrite reduction processes remains unclear. [...]
2019 - 10.1029/2019JG005045
Journal of Geophysical Research: Biogeosciences, Vol. 124, issue 7 (July 2019) , p. 2305-2320
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