Browsing by Author "f681ab60-2cb9-4d92-b61b-032cb8dfa509"
Now showing items 1-13 of 13
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Ahumada, Inés; Maricán, Adolfo; Retamal, Mauricio; Pedraza, Cristina; Ascar, Loreto; Carrasco, Adriana; Richter Duk, Pablo (Sociedade Brasileira de Quimica, 2010)The effect of biosolid application on the distribution and extractability of Cr, Cu, Ni, Pb, and Zn was assessed in Mollisol soils from an important agricultural zone in central Chile. These were amended with biosolids at ...
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Retamal, Mauricio; Ahumada, Inés; Maricán, Adolfo; Fuentes, Edwar; Borie B., Gilda; Richter Duk, Pablo (2010)An extraction method of polycyclic aromatic hydrocarbons (PAHs) from biosolids, based on continuous pressurized solvent extraction (PSE), was developed and optimized through an experimental design and followed by gas ...
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Jachero, Lourdes; Ahumada, Inés; Fuentes, Edwar; Richter Duk, Pablo (2016)The uptake of triclosan (TCS) and its metabolite methyl-triclosan (MTCS) by plants is poorly discussed in the current literature. The aim of this research was to analyze the extent of absorption of these compounds by the ...
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Caicedo, Pamela; Schröder, Andrea; Ulrich, Nadin; Schröter, Uwe; Paschke, Albrecht; Schüürmann, Gerrit; Ahumada, Inés; Richter Duk, Pablo (2011)The leachability of lindane from different biosolid amended soils was determined and compared to its bioavailability. Sand, soil, and a mixture of soil-sand (1:1 w/w) were spiked with lindane, blended with different amounts ...
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Mendoza, Jorge; Soto, Paula; Ahumada, Inés; Garrido, Tatiana (2004)A rapid method of capillary zone electrophoresis is described to determine the oxidized (GSSG) and reduced (GSH) form of glutathione in plant tissue. In order to separate both analytes in a fused-silica capillary, the pH ...
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Giordano, Ady; Richter Duk, Pablo; Ahumada, Inés (Elsevier B.V., 2011)The rotating disk sorptive extraction (RDSE) technique was applied to the determination of pesticides in aqueous samples. Pesticides of different polarities were considered in this study: chlorpyrifos, diazinon, fenvalarate, ...
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Ahumada, Inés; Ascar, Loreto; Pedraza, Cristina; Vásquez, Viviana; Carrasco, Adriana; Richter Duk, Pablo; Brown, Sally (2011)This study assessed the effect of biosolids applied at rates, 0, 30, 45, and 60 Mg ha(-1) on the chemical associations and bioavailability of Cu and Zn in soils from an important agricultural zone of the Metropolitan Region ...
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Cantarero, Romina; Richter Duk, Pablo; Brown, Sally; Ascar, Loreto; Ahumada, Inés (Springer Verlag, 2017)Biosolids contain inorganic and organic contaminants, including pharmaceutical and personal care products (PPCPs) that have accounted for a series of emerging contaminants, such as triclosan (TCS) and the hormone 17 ...
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Ascar, Loreto; Ahumada, Inés; Palomo Morales, Natalia; Garrido, Tatiana; Giordano, Ady; Leiva, Y. Karla (Sociedad Chilena de Quimica, 2017)Nonsteroidal anti-inflammatory drugs are widely used by humans as therapeutic agents to treat or prevent illnesses. Once ingested, part of them is excreted and enters the wastewater treatment plants generating biosolids ...
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Maricán, Adolfo; Ahumada, Inés; Richter Duk, Pablo (2012)In this study, a methodology for pressurized solvent extraction of alkylphenols (APs) and alkylphenol ethoxylates (APEOs) from biosolids was optimized by utilizing a biosolid natively containing these compounds at a high ...
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Ascar, Loreto; Ahumada, Inés; López, Alicia; Quintanilla, Francia; Leiva, Karla (2013)Nonsteroidal anti-inflammatory drugs (NSAIDs) are a group of medications widely used by man to heal certain ailments. However, after consumption, they may be excreted in wastewaters with consequent environmental effects. ...
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Richter Duk, Pablo; Cañas, Alejandro; Muñoz, Carlos; Leiva, Claudio; Ahumada, Inés (2011)A novel and very simple microextraction approach for pre-concentration and direct solid phase spectrophotometric measurement has been developed for the determination of chromogenic analytes. The model analyte to assess ...
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Muñoz, Carlos; Toral Ponce, María; Ahumada, Inés; Richter Duk, Pablo (Japan Society for Analytical Chemistry, 2014)This study demonstrates the first use of polydimethylsiloxane (PDMS) immobilized on a rotating disk for the extraction of copper from aqueous matrices and its subsequent direct determination by solid phase UV-Visible ...