Browsing by Title
Now showing items 24019-24038 of 91696
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(Elsevier, 2020)Using the differential pulse anodic stripping voltammetry technique and an in-situ bismuth film deposited on a glassy carbon electrode, a simple and sensitive method for rapid Pb(II) and Cd(II) quantification was developed. ...
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(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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(1992)A simple specific and sensitive high pressure liquid chromatography method (HPLC) to measure amiodarone and desethylamiodarone is described. The plasma sample is deproteinized with acetonitrile and a 50 ul aliquote run in ...
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(ELSEVIER SCIENCE BV, 2008-06-06)An efficient continuous pressurized solvent extraction (PSE) method assisted by ultrasound energy was developed for the extraction of polychlorinated biphenyls (PCBs) from biosolids. Analytes were determined in the extracts ...
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(ELSEVIER SCIENCE BV, 2008-06-06)An efficient continuous pressurized solvent extraction (PSE) method assisted by ultrasound energy was developed for the extraction of polychlorinated biphenyls (PCBs) from biosolids. Analytes were determined in the ...
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(Wiley-Blackwell, 2016)BACKGROUNDThe aim of the present study was to determine (1) the polyphenolic profile (phenolic acids, flavonoids and anthocyanins), (2) the antioxidant using four different methodologies (DPPH, ABTS, FRAP and FIC) and (3) ...
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(PRESTON PUBLICATIONS INC, 2005-04)
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(Springer, 2018-08)The probabilities for the generation of hyperconcentrated flows, and debris and mud flows in the middle basin of Elqui River (Chile) are determined. The objective was achieved collecting, for a period of 14 years, the ...
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(Universidad de Chile, 2017)Prosopis tamarugo Phil. (tamarugo) is a native legume tree that grows in the Pampa del Tamarugal, Atacama Desert, region of Tarapaca, Chile (Acevedo et al., 1985a). It belongs to the family Leguminosae, subfamily Mimosoideae. ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2009-01)Four different types of Chilean wines (Cabernet Sauvignon, Merlot, Carmenere and Syrah) were selected and examined in their free radical scavenging capacities by electron spin resonance (ESR) and spectrophotometric methods. ...
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(SciELO Agencia Nacional de Investigacion y Desarrollo (ANID), 2020)
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(Sociedad Chilena de Química, 2014)An ionic exchange high resolution liquid chromatography (IE-HPLC) method for determination of cations and anions in interstitial water of sediments, affluent and effluent of dams is proposed in this paper. Cations: Na+, ...
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(Soc. Brasileira Ciencia Tecnología Alimentos, 2020)Twenty-two colored-flesh potatoes and three commercial noncolored-flesh varieties - which were all raw as they were microwaved (800 W, 8 min) and fried (180 degrees C, 5 min) - were characterized in terms of functional, ...
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(Public Library of Science, 2018)© 2018 Pokrant et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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(ELSEVIER SCIENCE BV, 2001-06-12)A selective dynamic method for the determination of sulphide in Liquid and solid samples based on the integration of hydrogen sulphide pervaporation and potentiometric monitoring of the sulphide in a laboratory-made module ...
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(Sociedad Chilena de Quimica, 2013)Silicone rod extraction (SR) is a siloxane-based methodology for the extraction of organic pollutants from aqueous samples with similar principle extraction as the stir bar sorptive extraction (SBSE). In this study the SR ...
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(MEDICINA ORAL S L, 2012-03)Introduction: Some studies report that atopic patients have a greater frequency of delayed-type sensitization than non-atopic patients. Objective: To determine the influence of the atopic condition on delayed sensitization ...
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(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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(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 ...