Bromophenol Blue
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Cytotoxic effects of Euterpe oleraceae fruit oil (açaí) in rat liver and thyroid tissues
Abstract Euterpe oleracea Mart., Arecaceae, fruit (açaí) presents considerable potential for the development of new medicines due to its phytochemical composition and antioxidant activity. More recently, special attention has been given to the pharmacological potential of the fruit's oil. This study analysed the histological and histochemical effects of di
Rev. bras. farmacogn.. Publicado em: 2019-02
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2. Low Temperature Synthesis of Mixed Phase Titania Nanoparticles with High Yield, its Mechanism and Enhanced Photoactivity
A novel process was developed for the synthesis of a mixed phase (constituted of 66% anatase phase) of TiO2 nanoparticles at lower calcination temperature (400 oC) by the sol gel technique using a cost effective and easily available propanol solvent. Stereochemistry of propanol played a crucial role towards crystallographic phase of resultant TiO2nanoparticl
Mat. Res.. Publicado em: 26/02/2016
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3. Novos corantes vitais e instrumentos para cirurgia ocular
Objetivos: Este estudo contém cinco objetivos: 1. Realizar uma revisão atualizada do uso de corantes vitais em cirurgia ocular. 2. Apresentar os mecanismos de toxicidade retiniana por indocyanine green. 3. Avaliar a capacidade de novos corantes de tingir tecidos oculares. 4. Investigar a toxicidade retiniana de seis novos corantes em um modelo animal. 5. I
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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4. Spectrophotometric determination of famotidine using sulphonphthalein dyes
Four new extraction-free spectrophotometric methods have been established for the quantitation of famotidine (FMT). The methods are based on the formation of yellow ion-pair complexes between FMT and four sulphonphthalein dyes viz., bromothymol blue (method A), bromophenol blue (method B), bromocresol purple (method C) and bromocresol green (method D) in dio
Química Nova. Publicado em: 2011
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5. Titrimetric and spectrophotometric assay of bupropion hydrochloride in pharmaceuticals using mercury(II) nitrate
Two simple, rapid and accurate methods for the determination of bupropion hydrochloride (BUP) in pure and in pharmaceutical preparations are described. Both methods are based on the measurement of the chloride of its hydrochloride. In the titrimetric method, the chloride content of bupropion hydrochloride is determined by titrating with mercury(II)nitrate us
Eclética Química. Publicado em: 2010-09
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6. pH effects on the ohmic properties of bromophenol blue-doped polypyrrole film
A resposta ôhmica durante medidas de resistência in situ de filmes de polipirrol (ppy) dopados com azul de bromofenol (BPB) foi analisada para se estudar o efeito do pH nas propriedades analíticas dos filmes. As moléculas de BPB foram inseridas na matriz polimérica através de síntese eletroquímica sobre eletrodos digitalizados de ouro. Os filmes de p
Journal of the Brazilian Chemical Society. Publicado em: 2010
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7. Modelo matemático para avaliação hidrodinâmica em reatores tubulares operando em regime não-permanente / Mathematical model for hydrodynamic evaluation of pipe reactors with diffusion operated in non-steady flow
Mathematical models for hydrodynamic characteristics evaluation of reactors are commonly used however there is a lack of information in the literature concerning the application of mathematical modeling for non-steady state flow. In this thesis, it is presented a non-steady mathematical model to simulate the hydrodynamic behavior of pipe flow reactors with d
Publicado em: 2008
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8. Efeito de meios de re-diluição pós-descongelação sobre a cinética e morfologia de espermatozóides caprinos congelados em meio à base de água de coco em pó (ACP-101) ou TRIS. / Effect of means of re-diluted post-thaw on the kinetics and morphology of frozen goat spermatozoa through the base of coconut milk powder (ACP-101) or TRIS.
O trabalho teve como objetivos: avaliar in vitro o sêmen caprino congelado nos meios diluentes à base de água de coco em pó (ACP-101) e TRIS (hidroxi-metil amino metano); analisar o efeito de soluções para re-diluição seminal pósdescongelação por meio de parâmetros cinéticos mensurados pelo sistema Sperm Class Analyser e; comparar a eficiência
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/06/2007
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9. O pKa de indicadores ácido-base e os efeitos coloidais
An experiment is proposed that can be included in undergraduate courses of chemistry. The subject is the acidity of organic compounds, which are employed as pH indicators, particularly in acid-base titrations. The indicators used are methyl orange, bromophenol blue and bromocresol green in aqueous medium. The influence of colloidal systems on the equilibrium
Química Nova. Publicado em: 2006-06
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10. Preparation of sand fly (Diptera: Psychodidae: Phlebotominae) specimens for histological studies
Phlebotominae sand fly specimens were prepared for histological and physiological studies. Different fixatives were tested on sectioned and whole bodied adult females in order to obtain good fixation and provide satisfactory penetration of the embedding media. All fixed specimens were infiltrated (up to seven days under 5ºC) and embedded in hydroxyethyl met
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-03
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11. Preparative polyacrylamide gel electrophoresis purification of Clostridium perfringens enterotoxin.
Preparative polyacrylamide gel electrophoresis has been used to purify the enterotoxin of Clostridium perfringens from Sephadex G-100 extracts. Purified toxin of high specific activity was eluted in 1 to 3 h, depending upon the length of the acrylamide gel used. Recovery of biological activity with this technique ranged from 80 to 90%. The purity and physica
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12. Evidence for the presence of two nonidentical subunits in NAD-dependent isocitrate dehydrogenase of pig heart
The NAD-dependent isocitrate dehydrogenase [threo-DS-isocitrate:NAD+ oxidoreductase (decarboxylating); EC 1.1.1.41] from pig heart is a multisubunit enzyme with a molecular weight of approximately 340,000. Electrophoresis of the enzyme in 10% polyacrylamide gels containing sodium dodecyl sulfate reveals two discrete bands with molecular weights of 41,000 and