Buscar
Mostrando ítems 31-40 de 5160
Liquid crystalline formulations containing modified surface TiO2 nanoparticles obtained by sol-gel process
(Springer, 2012-08-01)
Titanium dioxide (TiO2) is an inorganic compound used as sunscreen in cosmetic/pharmaceutical formulations as a way to prevent the skin cancer. In this work we have used surface modified titania nanoparticles obtained by ...
Spatial and Seasonal Variations of Pharmaceuticals and Endocrine Disruptors in the Atibaia River, Sao Paulo State (Brazil)
(Soc Brasileira QuimicaSao PauloBrasil, 2011)
Gluing Ionic Liquids to Oxide Surfaces: Chemical Anchoring of Functionalized Ionic Liquids by Vapor Deposition onto Cobalt(II) Oxide
(Wiley VCH Verlag, 2017-06)
Ionic liquids (IL) hold a great potential as novel electrolytes for applications in electronic materials and energy technology. The functionality of ILs in these applications relies on their interface to semiconducting ...
Pesticide residue determination in surface waters by stir bar sorptive extraction and liquid chromatography/tandem mass spectrometry
(2009)
In this stir bar sorptive extraction (SBSE) method, 16 pesticides were extracted from surface water samples by sorption onto 1 mm polydimethylsiloxane layer coated on a 10-mm-length stir bar magnet. After liquid desorption ...
Detection of hormones in surface and drinking water in Brazil by LC-ESI-MS/MS and ecotoxicological assessment with Daphnia magna
(Springer, 2015-06-01)
The growing use of pharmaceutical drug is mainly due to several diseases in human and in animal husbandry. As these drugs are discharged into waterways via wastewater, they cause a major impact on the environment. Many of ...
X-ray absorption and x-ray fluorescence for the characterization of titanium oxide-modified HPLC silicas
(John Wiley & Sons LtdChichesterInglaterra, 2006)
Experimental analysis of the free surface of a liquid in a rotating frame
(IOP Publishing, 2020)
The shape of a liquid surface in a rotating frame depends on the angular velocity. In this experiment, a fluid in a narrow rectangular container is placed on a rotating table. A smartphone fixed to the rotating frame records ...
Intermolecular alignment dependence of ethylene glycol flow on the chemical nature of the solid surface (borosilicate and sno2)
(2001)
This work studied ethylene glycol (MEG) flowing on two different solid surfaces, borosilicate and thin dioxide (SnO2). Intermolecular alignment, determined as polarization and anisotropy, showed dependence on the solid ...