Gas Chromatography - C2

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Analysing Substances - Gas Chromatography

1. Sample vapourised and passed through a column (more like a tube)

2. A gas - like nitrogen because it is unreactive - will carry the sample through the column

3. In the column, the chemicals are carried through the column at different speeds

The amount of time a substance stays in the column is called the retention time

4. A detector detects the different…


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