Thiosulphate
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. NEW APPLICATIONS FOR AMOXICILLIN DETERMINATION IN PURE FORM AND PHARMACEUTICALS BASED ON IODATE-IODIDE MIXTURE: TITRIMETRY AND SPECTROSCOPY STUDIES
Three simple methods are described for the determination of amoxicillin (AMX) in bulk drug and dosage forms using iodate-iodide mixture reagent. These methods employed the well-known analytical reaction between iodate-iodide mixture in the presence of acid solution. The iodide oxidized by iodate to iodine in an amount equivalent to the -COOH group present in
Quím. Nova. Publicado em: 2020-01
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2. Postharvest quality of Aster ericoides after treatment with silver thiosulphate and sucrose
RESUMO: O áster (Aster ericoides L.) é originário da América do Norte, pertence à família Asteraceae, possui inflorescências do tipo capítulo e é muito usada como flor de corte. No Brasil, sua produção é recente e apresenta grande potencial de expansão. O uso de soluções de “pulsing” e de acondicionamento, em flores de corte, é bastante
Cienc. Rural. Publicado em: 07/01/2019
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3. Corrosion Evaluation of SAW Welded API 5L X-80 Joints in H2S-Containing Solution
The H2S corrosion resistance of API 5L X80 steel and its welded joint (WJ) were evaluated using the weight loss method in a 5%wt brine solution and different corrosive environments based on a sodium thiosulphate solution (10–3 and 10–2 mol/l). The weight loss method, scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD) were applied to
Mat. Res.. Publicado em: 2015-04
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4. Effectiveness of 2% peracetic acid for the disinfection of gutta-percha cones
The aim of this study was to evaluate the effectiveness of 2% peracetic acid for the disinfection of gutta-percha cones contaminated in vitro with Escherichia coli, Staphylococcus aureus, Streptococcus mutans, Candida albicans and Bacillus subtilus (in spore form). Two hundred and twenty-five gutta-percha cones were contaminated with standardized suspensions
Brazilian Oral Research. Publicado em: 2011-02
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5. Taxonomia de pracriontes isolados de cnidários de São Sebastião, SP, Brasil / Taxonomy of prokaryontes isolated from cnidarians of São Sebastião, SP, Brasil
Microorganisms have a key role in the health of cnidarians establishing ecologic relationships, of parasitism to mutualism. The knowledge on the diversity of prokaryotes associated with corals in Brazil is very limited. This is the first study on the taxonomic characterization of heterotrophic bacteria, including putative N2-fixing and specially vibrios isol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/04/2010
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6. Biofilter efficiencies in the purification and deodorization of hydrogen sulfide emissions / Desempenho de filtro biológico na depuração e desodorização de emissões de sulfeto de hidrogênio
Traditionally the industrial waste gases have been treated by physical-chemical processes, such as scrubbers, absorption, condensation and oxidation. Although these techniques presented great efficiency, the need to add chemical products and the replacement of adsorbent results in relatively high operational costs compared to biological treatment techniques.
Publicado em: 2007
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7. Manejo pós-colheita de Alpinia purpurata (Vieill) K. Schum (Zingiberaceae)
É notável o crescimento do mercado de plantas ornamentais no Brasil. Com participação efetiva da região Nordeste, destacando-se as exportações de flores tropicais, onde o Estado de Alagoas vem se firmando, com Alpinia purpurata (Viell) K. Schum (Zingiberaceae) como a principal flor de corte, e que ocupa o segundo lugar em importância econômica dentr
Publicado em: 2006
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8. EVALUATION OF API STEEL WELDED JOINTS IN A CORROSIVE MEDIUM / AVALIAÇÃO DA JUNTA SOLDADA DE AÇO API EM MEIO CORROSIVO
The steel tubes used in the Oil Industry are constantly exposed to hydrogen sulphide (H2S) which leads to the diffusion of hydrogen into the steel, provoking hydrogen induced embrittlement cracks and/or stress corrosion cracking. Welded joints, generally considered to be the critical region in pipelines, were evaluated in this study, using slow strain rate t
Publicado em: 2005
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9. Reduction of chromium (VI) by the indirect action of Thiobacillus thioparus
The microbial reduction of chromium(VI) to chromium(III) has been one of the most widely studied forms of metal bioremediation. Recently, we have found that Thiobacillus ferrooxidans and Thiobacillus thiooxidans, growing on elemental sulphur, can indirectly promote chromium(VI) reduction by producing reducing agents such as sulphite and thiosulphate, which a
Brazilian Journal of Chemical Engineering. Publicado em: 2003-03
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10. Viabilidade do uso do eletrodo de mercúrio como indicador, no estudo da formação de complexos, no sistema Hg(II)/S2O32+, em meio aquoso (OU) Viabilidade do uso do eletrodo de mercurio, no estudo da formação de complexos, no sistema Hg(II)/tiossulfato / Viability of use of a mercury electrode in the study of complex formation in the Hg(II)Thiosulphate system
O presente trabalho procura dar continuidade a uma das linhas de pesquisa desenvolvida pelo Grupo de Química Analítica do Instituto de Química da Universidade de são Paulo: o estudo da formação de complexos. O sistema Hg(II) / S2O2-3 foi analisado potenciometricamente, com a finalidade de identificar o número de complexos formados, assim como estimar
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/12/1986
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11. THIOSULPHATE CLEARANCE IN PREGNANCY
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12. A New Kit for Sodium Nitrite-thiosulphate Therapy in the Treatment of Acute Cyanide Poisoning