Browsing by Author "XX568890"
Now showing items 21-40 of 85
-
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 ...
-
Corrotea, Yanina; Richter Duk, Pablo; Brown, Sally; Sepúlveda, Betsabet; Ascar Estay, María Loreto; Ahumada Torres, Inés (Springer, 2016)Purpose Triclosan (TCS, 5-chloro-2-(2,4-dichlorophenoxy) phenol) an antimicrobial compound used in a range of household products, is an emerging hydrophobic organic contaminant, that may be incorporated into soil through ...
-
Determination of the sum of malachite green and leucomalachite green in salmon muscle by liquid ... Valle, Luis; Díaz, Cecilia; Zanocco Loyola, Antonio; Richter Duk, Pablo (ELSEVIER SCIENCE BV, 2005-03-04)A sensitive method for the determination and confirmation of the sum of malachite green (MG) and leucomalachite green (LMG) in salmon muscle has been developed. It is based on the use of an oxidative pre-column reaction ...
-
Cañas-Müller, Alejandro; Campo, Marcial del; Richter Duk, Pablo (Sociedad Chilena de Quimica, 2016)In this study, a new method for determination of triclabendazole (TCB) as its main metabolites, triclabendazole sulfoxide (TCB-SO) and triclabendazole sulfone (TCB-SO2) in animal plasma was developed. TCB is widely used ...
-
Ascar Estay, María Loreto (Universidad de ChilePrograma Cybertesis, 2006)En nuestro país, debido a las condiciones geológicas propias del territorio y a la actividad antropogénica gran parte de los suelos presentan altas concentraciones de arsénico. Por otra parte, la implementación de un plan ...
-
Ahumada Torres, Aída Inés de Lourdes; Sepúlveda, Karen; Fernández, Priscilla; Ascar Estay, María Loreto; Pedraza, Cristina; Richter Duk, Pablo; Brown, Sally (Springer, 2014)Purpose This study assessed the effect of biosolid application on the bioavailable fraction of some trace elements (Cu, Cr, Ni, and Zn) using a bioassay with sunflower (Helianthus annuus) and a chemical assay, diffusion ...
-
Ascar Estay, María Loreto; Ahumada Torres, Aída Inés de Lourdes; Richter Duk, Pablo (PERGAMON-ELSEVIER SCIENCE LTD, 2008-01)The effect of biosolid incorporation on arsenic distribution in Mollisol soils in central Chile was studied. Two soils were sequentially extracted for arsenic with a five-step method that accounts for the following arsenic ...
-
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 ...
-
Romero, Rodrigo; Sienra, María del Rosario; Richter Duk, Pablo (PERGAMON-ELSEVIER SCIENCE LTD, 2002-05)A rapid analytical approach for determination of polycyclic aromatic hydrocarbons (PAHs) present in real samples of particulate matter (PM10 filters) was investigated, based on the use of water under sub critical conditions, ...
-
Richter Duk, Pablo; Morales, Alfonso; Gómez Jeria, Juan; Morales-Lagos, Demlán (1988)An electrochemical study of the hallucinogen (±)-1-(2,5-dimethoxy-4- nitrophenyl)-2-aminopropane, which differs from similar compounds in that a hydrophilic nitro group replaces Hydrophobic substituants on the 4-position ...
-
Leiva Miranda, Claudio Andrés (Universidad de Chile, 2008)La aplicación de biosólidos a suelos con el fin de disposición, complementar o sustituir a los fertilizantes sintéticos, puede incorporar a éstos, especies inorgánicas y orgánicas capaces de causar un posible efecto adverso ...
-
Vieira, Camila M.S.; Mazurkievicz, Melaine; Lopez Calvo, Angela Maria; Debatin, Vítor; Micke, Gustavo Amadeu; Richter Duk, Pablo; Rosero-Moreano, Milton; Rocha, Eduardo Carasek da (Wiley-VCH Verlag, 2018)© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim In this study, the viability of applying cork and montmorillonite clay modified with ionic liquid as biosorbents in the rotating-disk sorptive extraction technique was ...
-
Garrido Díaz, Cristián Germán (Universidad de Chile, 2010)Los octilfenoles son los precursores sintéticos de los octilfenoles etoxilados, compuestos comerciales que pueden tener desde 1 a 40 grupos etoxilatos y son utilizados en la preparación de diversos compuestos. Su principal ...
-
Retamal Prado, Mauricio Andrés (Universidad de ChilePrograma Cybertesis, 2007)
-
Caicedo Vicuña, Pamela de la Asunción (Universidad de Chile, 2011-03)Los pesticidas organoclorados son compuestos de carácter orgánico que se usan para combatir plagas de insectos u otras especies indeseables en animales y plantas. Debido a problemas ambientales y sobre la salud humana, fue ...
-
Corrotea, Yanina; Sánchez, Karen; Rubio, M. Angélica; Richter Duk, Pablo (Sociedad Chilena de Quimica, 2014)© 2014, Sociedad Chilena de Quimica. All rights reserved. The rotating disk sorptive extraction (RDSE) technique was applied in this study to the extraction of 16 polycyclic aromatic hydrocarbons (PAHs) in real water ...
-
Toral Ponce, María; Manríquez, Roberto; Richter Duk, Pablo (MARCEL DEKKER INC, 1999)A simple flow injection photometric method for the determination of copper was developed based on the formation and liquid-liquid extraction of the analyte-bathocuproine-perchlorate ternary complex. The analytical reaction ...
-
Toral, A. E.; Tapia, A. E.; Richter Duk, Pablo; Fuenzalida, Emely (ROYAL SOC CHEMISTRY, 1997-10)A flow injection photometric method for the sequential determination of zinc and copper in mixtures was developed based on the variation of the stability of the chromogenic complexes between the analytes and the reagent ...
-
Toral Ponce, María; Richter Duk, Pablo (ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS, 1996-05)An integrated retention/photometric detection method for the determination of microamounts of iron was developed. The method is based on the retention of the reaction product of the analyte with ferrozine in a flow cell ...
-
Richter Duk, Pablo; de Castro, M. D.Luque; Valcárcel, Miguel (1993)A sensor for the determination of cadmium based on retention of the Cdl4″ complex on a QAE Sephadex resin located in the flow-cell of a conventional photometric detector and on subsequent complex displacement reaction with ...