Supported by. Venezuelaâs economy is dominated by the oil industry, and it has the largest proven reserves of crude oil in the world. President Hugo Chavez, who was elected in 1998 on a populist platform, consolidated state control over the economy and nationalized its telephone and electricity companies.
Chromatography (/ËkroÊmÉËtÉÉ¡rÉfi/ ; from Greek ÏÏá¿¶Î¼Î± chroma which means color and Î³ÏÎ¬ÏÎµÎ¹Î½ graphein to write) is the collective term for a set of laboratory techniques for the separation of mixtures.he purpose of preparative chromatography is to separate the components of a mixture for more advanced use (and is thus a form of purification). Analytical chromatography is done normally with smaller amounts of material and is for measuring the relative proportions of analytes in a mixture.
Gas chromatography is a powerful means of performing qualitative and quantitative measurements of complex mixtures of volatile substances. In this experiment you will use gas chromatography for quantitative analysis of complex mixtures and determine parameters used to optimize the separation.he number of theoretical plates, n, is a dimensionless number, which is related to the ratio between the retention time, tr, and the width of the peak containing the compound. If the peaks are reasonably symmetric, it can be assumed that they are Gaussian in shape.