Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 4661-4680 of 5098
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(ELSEVIER SCIENCE SA, 2003-04-01)Seven types of ion-selective chemical sensors based on poly(vinyl chloride) (PVC) as polymeric membrane, for determination of nitrate ion, have been prepared by using 3-nitro-o-xylene (NOX), tributylphosphate (TBP), ...
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(WILEY-V C H VERLAG GMBH, 2000-06-20)A large number of carboxylic groups were introduced onto chitosan by grafting with poly(acrylic acid) as an efficient way of modification. The reactions were carried out in a homogeneous aqueous phase by using potassium ...
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(ELSEVIER SCIENCE BV, 2007-09)Chicken eggshell (ES) is an industrial byproduct containing 95% calcium carbonate, and its disposal constitutes a serious environmental hazard. Different proportions of chicken eggshell as bio-filler for polypropylene (PP) ...
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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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(SOC CHILENA QUIMICA, 2008-03)A tetranuclear complex of Co(III) with hydroxo bridges, so-called "Werner Complex", was synthesized in the presence of several sugars (1-8) with partial resolution of this complex. The sugars in 10 mol % with respect to ...
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(LIBRAPHARM, 2006-09)Objective: To summarize remission rates and dropouts due to adverse drug reactions (ADRs) or lack of efficacy (LoE) of serotonin-norepinephrine reuptake inhibitors (SNRIs), selective serotonin-reuptake inhibitors (SSRIs), ...
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(BLACKWELL MUNKSGAARD, 2003-11)The crystal and molecular structure of the monomeric title compound, chlorotetrakis(2-methylimidazole)copper(II) chloride, [CuCl(C4H6N2)(4)]Cl, is presented, and compared with those of two other closely related monomeric ...
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(ADIS INT LTD, 2007)Objective: To determine the cost effectiveness, from the Brazilian Ministry of Health viewpoint, of three antidepressant classes for major depressive disorder (MDD), and the budget impact of introducing serotonin-noradrenaline ...
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(ELSEVIER SCIENCE SA, 2002-06-27)A Cu(II)-Gd(III) heteronuclear complex with N,N'-ethylene-bis-5-methoxy salicylaldiimine (ems) as ligand has been synthesized. The complex crystallizes in the monoclinic system C2/c space group. The structure consists of ...
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(BLACKWELL PUBLISHING, 2009-01)The two isomorphous title structures, formulated as {[Co(C10H4O8)(C12H10N2)(H2O)(2)]center dot C12H10N2}(n), (I), and {[Co(C10H4O8)(C12H12N2)(H2O)(2)]center dot C12H12N2}(n), (II), respectively, are reported. They crystallize ...
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(WILEY-BLACKWELL PUBLISHING, 2009-03)The structures of three new polymeric lanthanide complexes, poly[[bis(2,2'-bipyridine)-mu(4)-itaconato-di-mu(3)-itaconato-digadolinium(III)] tetrahydrate], {[Gd-2(C5H4O4)(3)(C10H8N2)(2)]center dot 4H(2)O}(n),(I), ...
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(WILEY-BLACKWELL PUBLISHING, 2009-07)catena-Poly[[tetraaquabis(1H-pyrazole-kappa N-2) nickel(II)] [[diaquabis(1H-pyrazole-kappa N-2) nickel(II)]-mu-benzene-1,2,4,5-tetracarboxylato-kappa O-2(1):O-4] tetrahydrate], {[Ni(C3H4N2)(2)(H2O)(4)][Ni(C10H2O8)(C3H4N2 ...
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(BLACKWELL PUBLISHING, 2007-11)The polymeric title compounds, namely catena-poly[[[di-mu-but- 2-enoato-kappa(3) O:O,O';kappa O-3,O':O'-bis[diaquadibut-2-enoato- kappa O;kappa O-2,O'-neodymium( III)]]-mu-4,4'-bipyridyl N,N'-dioxide- kappa(2) O:O'] ...
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(WILEY-BLACKWELL PUBLISHING, 2009-07)mu-Benzene-1,2,4,5-tetracarboxylato-kappa O-2(1):O-4) bis[aquabis(2,2-methylpropane-1,3-diamine-kappa N-2,N') nickel(II)] methanol disolvate tetrahydrate, [Ni-2(C10H2O8)(C5H14N2)(4)(H2O)(2)]center dot 2CH(4)O center dot ...
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(ELECTROCHEMICAL SOC INC, 2002-10)A comprehensive study of the electrochemical characteristics of 2-, 3-, and 4-nitroanisole isomers in three different electrolytic media has been carried out. Furthermore, kinetic characterization of the one-electron ...
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(BLACKWELL MUNKSGAARD, 2003-10)The structures of aquadichlorobis(1H-imidazole) cobalt(II), [CoCl2(Him)(2)(H2O)(2)] (Him is 1H-imidazole, C3H4N2), (I), and aquadichlorobis(1H-imidazole) nickel(II), [NiCl2( Him)(2)( H2O)(2)], ( II), are isomorphous and ...
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(TAYLOR & FRANCIS INC, 2008)Grainless stalk of corn (GLSC) was tested for removal of Cr(VI) and Cr(III) from aqueous solution at different pH, contact time, temperature, and chromium/adsorbent ratio. The results show that the optimum pH for removal ...
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(BLACKWELL MUNKSGAARD, 2003-10)The synthesis and crystal structures of three new yttrium crotonate (crot) compounds, associated with three different nitrogenous bases, namely 1,10-phenanthroline ( phen), 4-methyl-1,10-phenanthroline (mphen) and ...
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(BLACKWELL MUNKSGAARD, 2003-11)The title compound, [Cu2Cl4(C5H5NO)(2)](n), is a one-dimensional polymer in which the Cu-II atoms are alternately bridged by two O atoms [Cu...Cu = 3.2131 (10) Angstrom] and two Cl atoms [Cu...Cu = 3.7061 (11) Angstrom]. ...
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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 ...
