Chemical Engineering @ChemengFiles.Com

The object of this investigation has been to determine a method to extract lithium from its ores in order to produce Li2CO3 which is used in medicine. Lithium salts command very good prices (averaging about $1.50 per pound) and a simple method of production would form a successful commercial enterprise. Lithium occurs in lepidolite (a lithium mica) and in amblygonite and other moderately rare minerals. In Southern California there are deposits of lepidolite with which this work has been conducted.

A study involving the Consejo Superior de Investigaciones Científicas (CSIC) the basis for the design of a vaccine to prevent the action of the parasites of the genus Ascaris, causing an infection of worms most common with a prevalence of around 25 percent of the world's population and particularly in children. Specifically, the research that is
published in PNAS, picking off one of the mechanisms that the parasite uses to resist the body's defenses infected.

The study, coordinated by researchers F. Xavier Gomis-Ruth, F. Xavier Avilés López and Joan Arolas, is a collaboration between groups of the Institute of Molecular Biology of Barcelona (CSIC) and Universidad Autónoma de Barcelona.

XP56 microbalance weighing technology quantum.

October 31, 2008 - The standard substances they are highly prized and are used frequently to calibrate analytical instruments such as those used in high performance liquid chromatography (HPLC for its acronym in English) or gas chromatography (GC and its acronym in English). Reducing the amount used of these materials will help directly to reduce costs significantly. But at the same time, the sample size must exceed the minimum weight limit set (this is a typical challenge of R & D laboratories and quality control).

The XP56 microbalance by METTLER-TOLEDO solves this challenge with its specification without precedent. 52 g capacity and 1 g resolution. With revolutionary innovations and unique "ErgoClip Flask" and "MinWeigh Door," now it can dispense the samples directly in containers larger tara, for example, volumetric flasks.