Search Results - "da Costa, Antonio Carlos S"
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The effect of pH and ionic strength on the adsorption of glyphosate onto ferrihydrite
Published in Geochemical transactions GT (24-05-2019)“…Although, glyphosate ( N -(phosphonomethyl) glycine) is one of the most widely used herbicides in the world, its interaction with poorly crystalline iron…”
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2
Adsorption of cysteine on hematite, magnetite and ferrihydrite: FT-IR, Mössbauer, EPR spectroscopy and X-ray diffractometry studies
Published in Amino acids (01-01-2011)“…In the present paper, the adsorption of cysteine on hematite, magnetite and ferrihydrite was studied using FT-IR, electron paramagnetic resonance (EPR),…”
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3
Characterization of palygorskite clay from Piauí, Brazil and its potential use as excipient for solid dosage forms containing anti-tuberculosis drugs
Published in Journal of thermal analysis and calorimetry (01-08-2013)“…Clays play an important role in health products as it has been used as excipients for solid dosage forms and as active ingredients. Usually, excipients are…”
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Journal Article Conference Proceeding -
4
Adenine Adsorbed onto Montmorillonite Exposed to Ionizing Radiation: Essays on Prebiotic Chemistry
Published in Astrobiology (01-01-2020)“…Most adsorption and radiolysis experiments related to prebiotic chemistry studies are performed in distilled water or sodium chloride solutions. However,…”
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5
The Effect of Goethites on the Polymerization of Glycine and Alanine Under Prebiotic Chemistry Conditions
Published in Origins of life and evolution of biospheres (01-12-2021)“…After pre concentration of monomers, polymerization is the second most important step for molecular evolution. The formation of peptides is an important issue…”
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A Prebiotic Chemistry Experiment on the Adsorption of Nucleic Acids Bases onto a Natural Zeolite
Published in Origins of life and evolution of biospheres (01-09-2015)“…There are currently few mechanisms that can explain how nucleic acid bases were synthesized, concentrated from dilute solutions, and/or protected against…”
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Modification of montmorillonite with sodium sulfide for prebiotic chemistry studies: Characterization using spectroscopy methods and X-ray diffractometry
Published in Applied clay science (01-12-2013)“…Changes in the mineral characteristics of montmorillonite (Mt) resulting from exposure to sodium sulfide (Na2S) or artificial seawater revealed the capacity…”
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8
Quantification and characterization of maghemite in soils derived from volcanic rocks in Southern Brazil
Published in Clays and clay minerals (01-08-1999)“…Abstract Many soils developed from volcanic rocks in southern Brazil exhibit spontaneous magnetization caused by the presence of fine-grained maghemite ( γ -Fe…”
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Characterization of palygorskite clay from PiauASH, Brazil and its potential use as excipient for solid dosage forms containing anti-tuberculosis drugs
Published in Journal of thermal analysis and calorimetry (01-08-2013)“…Clays play an important role in health products as it has been used as excipients for solid dosage forms and as active ingredients. Usually, excipients are…”
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Journal Article -
10
Calibração de duas sondas de nêutrons em condições de campo e laboratório
Published in Acta scientiarum. Agronomy (01-07-2008)“…Foram testadas duas metodologias para a calibração de duas sondas de nêutrons, modelo CPN 503DR, que determina a umidade do solo, e CPN 501DR, que determina a…”
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