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Effect of drying technique on some physical properties of cross-linked high amylose/pectin mixtures
(2013-02-01)
Polymers mixtures as well as cross-linking reactions are approaches that have been used successfully to modulate the polymers characteristics in order to improve the control over drug release rate. High amylose and pectin ...
Determinação espectrofotométrica de hexametilenotetramina (HMT) em medicamentos, utilizando ácido cromotrópico e forno de micro-ondasSpectrophotometric determination of hexamethylenetetramine (HMT) in pharmaceutical preparations using chromotropic acid and microwave oven
(Sociedade Brasileira de Química, 2009)
Spectrophotometric determination of formaldehyde with chromotropic acid in phosphoric acid medium assisted by microwave oven
(Elsevier B.V., 2004-05-01)
In the present study. a spectrophotometric method for the determination of formaldehyde by using chromotropic acid was devised. in which the use of potentially hazardous and corrosive concentrated sulfuric acid was eliminated ...
Post-mortem analysis of silica bricks for coke ovens
(The Technical Association of Refractories, 2006-12)
Silica bricks that operated during 12 and 25 years in coke ovens at pusher and coke chamber zones were studied. Two different regions of the bricks were analysed: that in contact with coal (oven side) and the other in ...
Projeto, construção e análise de desempenho de um forno solar alternativo tipo caixa a baixo custo
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2008-11-06)
An alternative box-type solar oven constructed from the scrap iron of a gas conventional cook is presented, which functions principles are the effect greenhouse and the concentration. The oven of the conventional cook is ...
Determinação espectrofotométrica de hexametilenotetramina (HMT) em medicamentos, utilizando ácido cromotrópico e forno de micro-ondas
(Sociedade Brasileira de Química, 2009-01-01)
This paper proposes a methodology for spectrophotometric determination of hexamethylenetetramine (HMT) by using chromotropic acid in a phosphoric acid media employing a domestic microwave oven as a source of heating. The ...