Browsing by Title Artículos de revistas
Now showing items 2719-2738 of 2801
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(BENTHAM SCIENCE PUBL LTD, 2001-03)The structural elucidation of complex organic molecules relies heavily on the application of proton detected heteronuclear NMR. Among these techniques, the HMBC NMR experiment is probably the most useful 2D NMR method The ...
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(2001)The structural elucidation of complex organic molecules relies heavily on the application of proton detected heteronuclear NMR. Among these techniques, the HMBC NMR experiment is probably the most useful 2D NMR method. The ...
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(WILEY-V C H VERLAG GMBH, 2003-11-24)The use of grafted poly(propylene) (PP) and a random copolymer of ethylene and propylene (EPR) with an itaconic acid derivative, monomethyl itaconate (MMI), as compatibilizer for PP/EPR blends was analyzed. The grafting ...
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(WILEY-V C H VERLAG GMBH, 2006-08-02)Functionalized PP samples with different percentages of grafted IA, i.e., 0.7, 1 or 1.8 wt.-%, with similar molecular weights were used as compatibilizers in PP/clay nanocomposites. PP nanocomposites containing 1 wt.-% of ...
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Use of Pyrogallol Red and Pyranine as Probes to Evaluate Antioxidant Capacities towards Hypochlorite (2013)Hypochlorite is a strong oxidant able to induce deleterious effects in biological systems. The goal of this work was to investigate the use of PGR and PYR as probes in assays aimed at evaluating antioxidant activities ...
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(WILEY-V C H VERLAG GMBH, 2007-09-14)Recycling of thermoplastic wastes consisting using SEBS/EPR and SBR/EPR as compatibilizers. The effect of PE/PP/PS/HIPS blends was investigated by The effect of the binary compatibilizer systems and processing conditions ...
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(WILEY-V C H VERLAG GMBH, 2007-12-11)Correction
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(ROYAL SOC CHEMISTRY, 2004)In Chile, the increasing number of plants for the treatment of wastewater has brought about an increase in the generation of sludge. One way of sludge disposal is its application on land; this, however involves some problems, ...
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(Springer New York LLC, 2017)The potential activity of mango by-products to inhibit the peroxyl radical-mediated oxidation of tryptophan residues (Trp) of myofibrillar proteins (MP) was studied. Extracts of seeds, peels and pulps were studied in terms ...
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(BioMed Central, 2014)Background: One of the major challenges of nanotechnology during the last decade has been the development of new procedures to synthesize nanoparticles. In this context, biosynthetic methods have taken hold since they are ...
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(2004)This article describes the basis and development of the solid dosage form section of an educational CD-ROM, including both the theoretical and self-evaluation sections.
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(Universidad Austral de Chile. Instituto de Ecología y Evolución, 1986)In this work the utilization of an Andersen cascade impactor for the study of atmospheric aerosols is analyzed. The impactor is run at 4.7 cfm during 24 h, fractionating the particulate matter into five sizes, from 2.84 ...
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(Springer, 2020)Even though effective drugs for treating hypertension are available, a great percentage of patients have inadequate control of their blood pressure. Unwanted side effects and inappropriate oral drug adherence are important ...
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(ELSEVIER, 2010)Recent consumer trends towards healthier and low fat products have had a significant impact on the snack industry. The objective of this study was to examine the most important quality parameters of vacuum and atmospheric ...
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(GOVI-VERLAG GMBH, 2003-10)A validated HPLC method for the determination of ranitidine in human plasma is presented. Sulfanilamide as internal standard (IS) was used. Plasma samples were purified by solid phase extraction (SPE) using a copolymeric ...
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(AOAC INTERNATIONAL, 2001-09)The aim of the work described in this paper was to provide a fast, easy, inexpensive, precise, and accurate method for the determination of melatonine in solid pharmaceutical dosage forms. The developed method is based on ...
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(Chile. Ministerio de Agricultura. Instituto de Investigaciones Veterinarias, 1951)Con este trabajo se ha dado comienzo al estudio de nuestros forrajes de secano, en lo que respecta a sus cualidades nutritivas. Se ha escogido el Alfilerillo por ser este uno de los recursos alimenticios mas antiguos de ...
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(Chile. Ministerio de Agricultura, Instituto de Investigaciones Veterinarias, 1953)Es de vital importancia para la nutrición animal, conocer el contenido de azufre y iodo en la alfalfa común (Medicago sativa), por ser este forraje uno de los más ricos en principios nutritivos y elementos minerales, y ...
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(Chile, Instituto de Investigaciones Agropecuarias, 1953)El presente trabajo tiene por objeto estudiar el contenido en vitamina C en Alfalfa verde, Heno de alfalfa y Trébol y además Caroteno en Trébol, empleándose el método espectrofotométrico, por presentar este mayores ventajas ...