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.
Confidence votes 160. It is the separation of two or more substances in a solvent. Chromatography is a separation technique based on the different interactions of the compounds with the two phases, a mobile phase and a stationary phase, as the compounds travel through the supporting medium.The mobile phase is the ink spot, as it travels up the piece of paper (in paper chromatography).hromatography is an analytical method to separate the compounds from the two immiscible phases,one being a mobile phase and another being a stationary phase. It is used in pe â¦ troleum industry,pharmaceutical industry.