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	Provedor de dados BABT (3) Autor Nozaki,Jorge (3) Dias,Lucia Felicidade (1) Garcia,Edivaldo E (1) Kimura,Cláudia C.M (1) Martins,Ariovaldo C (1) Reis,Edson M. dos (1) Rocha,Gisele O (1) Mais... Palavra-chave Activated sludge process (1) Biological degradation (1) Chromatography (1) Chrome shavings (1) Chromium (1) Enzyme (1) Extraction-spectrophotometry (1) Flocculation (1) Metal alloy (1) Natural polyelectrolytes (1) P-dimethylaminebenzylidenerhodanine (1) Palladium(II) (1) Paper and pulp effluents (1) Protein (1) Rocks (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2000 (1) 1999 (2) País Brazil (3) Idioma Inglês (2) Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Chromatographic characterization of products isolated from chrome shavings BABT Garcia,Edivaldo E; Kimura,Cláudia C.M; Martins,Ariovaldo C; Rocha,Gisele O; Nozaki,Jorge. Gel permeation chromatography and high performance liquid chromatography were employed for separation and chemical characterization of products isolated from chrome shavings. After enzymatic hydrolysis, the products isolated were peptides of higher molecular weight. Peptides of lower molecular weight and free aminoacids were the main products using sulfuric acid in chrome shavings solubilization. Glycine (17%) , glutamic acid (10.6%) , alanine (9.2%) , and arginine (8.2%) were the principal amino acids found. Phenylalanine(1.8%) was the main aromatic amino acid , while tryptophane was completely absent. Tipo: Info:eu-repo/semantics/article Palavras-chave: Chrome shavings; Enzyme; Chromatography; Protein; Chromium. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300003 Spectrophotometric determination of Pd(Ii) with P-Dimethylaminebenzylidenerhodanine BABT Dias,Lucia Felicidade; Nozaki,Jorge. p-Dimethylaminebenzylidenerhodanine in methyl isobutyl ketone was employed as selective and sensitive reagent for the extraction and determination of palladium(II) in metal alloys and rocks. Beer’s Law is followed in the concentration range 0.2-2.4 m g.mL-1 of organic phase with a molar absorptivity of 3.0x10(4)L.mol-1.cm-1. The detection limit observed for aqueous solution was 0.1 mg.L-1. The extractions were performed at pH 2.4 and no interference of foreign ions such as Cu2+, Zn2+, Fe3+, Pb2+, Hg2+ ,etc., were observed in jewellery alloy and rock sample analyzed. The complex of reagent and palladium(II) was pH dependent and it should be carefully controlled during extraction. Continuous variation and mole ratio methods showed that the complex... Tipo: Info:eu-repo/semantics/article Palavras-chave: P-dimethylaminebenzylidenerhodanine; Palladium(II); Extraction-spectrophotometry; Rocks; Metal alloy. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200003 Tratamento biológico de efluentes de indústrias de papel após floculação e coagulação com sais de alumínio e polieletrólitos naturais BABT Reis,Edson M. dos; Nozaki,Jorge. The flocculation and sedimentation of recalcitrant organic compounds of high molecular weight using natural polyelectrolytes, extracted from the cactus Cereus peruvianus and Opuntia ficus indica, have been studied. Organic compounds of high molecular weight from effluents of paper and pulp industries are difficult for biological degradation. However, using a mixture of aluminum salts and natural polyelectrolytes, the aggregation and settling properties of recalcitrant organics were increased if compared with conventional methods of wastewater treatment using only aluminum or iron sulfate. After flocculation, sedimentation, and filtration, the effluent was submitted to biological degradation by activated sludge process. The main advantages of using a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Flocculation; Natural polyelectrolytes; Biological degradation; Activated sludge process; Paper and pulp effluents. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100016 Registros recuperados: 3 Primeira ... 1 ... Última

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