Clays are the main raw material in the manufacture of products for the construction sector, such as tile, veneer, flooring and bricks. Small and medium enterprises generally use brick clays of different mineralogical origin, ...

A bibliographic review about the main aspects concerning the development of immunosensors is presented in this article, as well as some of the experimental results in an application in the analysis of carbaryl plaguicide ...

Detection and monitoring of the organophosphate insecticide chlorpyrifos are required to comply with the limits allowed under different laws of regulatory agencies. Here we report on a piezoelectric immunosensor which can ...

A chromatografic method for the determination of dioxins and furans from one of their precursors is shown from standards of measurements and from real samples of gases taken from an incineration plant in Itagüí, Colombia. ...

Technologies for thin film deposition have been used to improve the functionalization of quartz crystal resonators (QCR); such technologies, for example, are spin coating and Langmuir-Blodgett (LB) film preparation. These ...

The aim of this work was to find a model which allows predicting the drying time of mango (Mangifera indica) pulp at different temperature conditions. A laboratory dryer was built in which several drying probes at 55 oC, ...

This study shows technical, economical, and environmental aspects which have to be handled in the design of the new plants to be built in Colombia in order to produce the alcohol required to fit the new rules established ...