| Effect of Magnesia Phosphorica 12C on SDS by 13C Nuclear Magnetic Resonance. | |
Abstract/OtherAbstract
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<p class="IJHDRabstract" style="margin: 0cm 1cm 6pt;"><span lang="EN-US"><span style="font-size: x-small; font-family: Century Schoolbook;">Sodium dodecylsulphate (SDS) dissolved in water forms aggregates whose thermodynamic properties are well defined. The interest in polymer-surfactant systems derives from increasing possibilities to apply them in pharmaceutics, cosmetics and environmental protection. Nutrient content of soils after many years of use is a concern in many areas; on the other hand, the metabolism of plants approaches equilibrium when <span style="mso-bidi-font-weight: bold;">the conditions necessary for their growth are present. Magnesium and phosphorus are important nutrients for plants and high dilutions of <em style="mso-bidi-font-style: normal;">Magnesium phosphoricum (Mag-p)</em> may carry information related to them. <strong>Aims</strong>: To study the influence of <em style="mso-bidi-font-style: normal;">Mag-p</em> on SDS aggregates. <strong>Methods</strong>: the effect of <em style="mso-bidi-font-style: normal;">Mag-p</em> dilution 12c on the structure of SDS aggregates was assayed through </span><sup>13</sup>C nuclear magnetic resonance. <strong style="mso-bidi-font-weight: normal;">Results</strong>: The spectrum of SDS and <em style="mso-bidi-font-style: normal;">Mag-p </em>12c in D<sub>2</sub>O presented an extra signal in 221.41 ppm when compared to the SDS / D<sub>2</sub>O spectrum. The C=O group of ketones and aldehydes absorb around 200 ppm. The carbon carbonyl shows large spin-lattice relaxation times (T1) and weak NOE (<span style="mso-bidi-font-weight: bold;">Nuclear Overhauser Effect</span>) enhancement, thus signal from this type of atom are very weak when compared to signals from carbon atoms with hydrogen. The signal present in 221.41 ppm was comparable in size to the other signals in the spectrum indicating that it was not a machine-generated artifact. The experiments carried out in this work suggest that this signal was induced by a combination of SDS and the high diluted solution.</span></span></p> |
Authors
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Elson Santiago de Alvarenga, Rosmeri Terezinha Batirola da Silva, Vicente Wagner Dias Casali |
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Contributors
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Publication Detail
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Publisher : Groupe International de Recherche sur l'Infinitesimal - GIRI Type : - Format : - |
Date Detail
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2009 |
Subject
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ultra dilution, homeopathy, Sodium Dodecylsulphate, NMR |
Coverage
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Relation
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Source
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International Journal of High Dilution Research |
Copyright Information
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Other Details
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Languages : eng |
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