Question

A number of factors determine the rate at which a given compound travels through a gas chromatograph. List two of these factors: The period following injection that is required for a compound to pass through the column is called the What would happen to the retention time of a compound if the following changes were made? Decrease the flow rate of the carrier gas Increase the temperature of the column Increase the length of the column How do the temperature and flow rate of the carrier gas affect the separation of two compounds that have been shown to separate by GC? 5. Rank the following compounds in terms of expected retention times on a non-polar GC Column OCH.CH MW-114 MW-08 BP - 1016C MW- 88.1 BP- MW- 100.1 BP- 18300

Answer 1

1Two fautors on wtuch mo vement Compaund dafends enj gien Bothig faint anlye Higher boilu at Contaund s lis Volatile and Rence eluta at theend. bD Extent af interaution between analyte and Atatuay thase. less interactien betwean the to caues the analyte to elute Pater sate The Reriod is callad Retetio tune becaun it descaibes the entent intoracton and retainuig Celunn fonwer the