Gas Chromatography

Gas Chromatography

1. allows a mixture of compounds to be separated, by their weight

   • 1. sample dissolved in solvent and then injected into an end of the column
     • 2. unreactive gas (nitrogen) carries sample through column
       • 3. dif. substances travel through column at different speeds, and therefore become separated
         • 4. separated substances leave the column, one after another. as they leave, they are detected by detector

2. long glass tube, packed with solid powdered material, fitted into an oven.