Browsing by Author "Schalscha B., Eduardo"
Now showing items 1-14 of 14
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(SPRINGER VERLAG, 1998-01)Heavy metals participate in complex biogeochemical cycles whose final destination (except on a geological scale)is the bottom of oceans and lakes. This implies that to reach the bottom the metals of the sediment have to ...
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(Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1992)Wasterwastes of municipal and industrial origin used to irrigate farmlands contain heavy metals which are sorbed on the surfaces of soil particles. Among those metals are cadmium (Cd) and copper(Cu). The degree to which ...
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Capillary electrophoretic determination of ions in soils / determinación de iones en suelos por ... (SOCIEDAD CHILENA DE QUIMICA, 1997-12)The applicability, sensitivity and repetitivity, as well as general aspects of the Capillary Zone Electrophoresis (CZE) technique was studied as applied in the identification and quantification of Cl-, NO3-, HCO3-, SO42-, ...
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(MARCEL DEKKER INC, 1999)Soil samples from a field irrigated with untreated industrial and municipal wastewater for several decades and from a field not receiving wastewater (control) were analyzed for total copper (Cu) and zinc (Zn) and for the ...
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(Sociedad Chilena de Química, 1993)Este documento da una visión general del estado de esta disciplina, el que se elaboró a partir de la información solicitada a los investigadores del sistema universitario, estableciendo los Grupos de Investigación, sus ...
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(IST CHIMICA AGRARIA, UNIV PISA VIA S MICHELE DEGLI SCALZI, 1999-05)The content and the chemical forms of chromium, copper, nickel and zinc in allophanic and montmorillonitic soils, one of them irrigated exclusively with untreated sewage waters, were studied. To gain information about the ...
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(Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1999)La movilidad y disponibilidad de micro elementos o trazas de metales pesados es una función de su contenido en el substrato y está determinada principalmente por las formas químicas en que se presente en aquel (KABATAPENDIAS, ...
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(Sociedad Chilena de Química, 1997)En el presente estudio se analizaron los aspectos generales y la aplicabilidad de la técnica de Electroforesis Capilar de Zona (ECZ), evaluando la repetibilidad y sensibilidad de los resultados obtenidos al trabajar con ...
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(Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1995)El riego con aguas servidas no tratadas, el depósito de lodos provenientes de plantas de tratamiento de aguas, el relleno sanitario y también el uso de ciertos fertilizantes, pueden contribuir a modificar la forma y cantidad ...
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(American Society of Agronomy, 1986)A Vertisol irrigated for over five decades with an untreated municipal wastewater had elevated levels of DTPA extractable Cd, Co, Cu, Mn, Ni, and Zn in the cultivated layer of the soil as compared to lower layers. Total ...
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(Soil Science Society of America, 1984)Extraction of Cd,Cu, Ni and Zn by BaCl(Ba(ClO-4)2 solutions from El Recuerdo(Vertisol) and Puerto Octay (Andept)soils was used to measure the amounts of metals remaining extractable during a 60-d storage period under air-dry ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1998)Industrial and domestic waste waters in Chile are discharged without previous treatment into rivers and other inland waters which are used to irrigate agricultural lands. The present study reports on results obtained when ...
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(The Williams & Wilkins Co., 1975)Characterization of the metal-complexing ability of polyfunctional macromolecules through the determination of stability constants of their metalic complexes is discussed along with the validity of ascribing a relationship ...
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(SPRINGER-VERLAG, 2002-03)The mud of the northern zone of the Gulf of Arauco is considered an area of sediments rich in organic matter, due to the current regime and to the geomorphology of the gulf. The possible accumulation of heavy metals derived ...
