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Gas Chromatography

Gas Chromatography - Gas Chromatography(GC The Separation...

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Gas Chromatography (GC): The Separation and Analysis of Heptane, Tetrahydrofuran, and 1-Propanol 11 March 2008 Introduction The primary objective of this experiment is to separate the components of a mixture, which are heptane, tetrahydrofuran, and 1-propanol, using a gas chromatograph. A gas chromatograph is used when the mobile phase is a gas, in this case, helium. There are two injection ports on a gas chromatograph (A and B), which are determined to be polar and nonpolar respectively. Once a compound is ejected into the injection port, a carrier gas, which is the mobile phase, or helium, carries it to the stationary phase, or in this case, the column. This process aids in the separation of the compound. If the column is polar, the nonpolar compounds will come out first. For example, if the column is polar, heptane will exit fist, followed by tetrahydrofuran, then 1-propanol. If the column is nonpolar, then the opposite effect would occur. However, in this experiment, the polar compounds exit first, meaning the column is nonpolar.
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