1)A sample was run on a GC and the retention time was determined to be 160 sec. If the column has 1220 theoretical plates, find the baseline peak width in sec.

2)The same mass (Area) of material was injected on two different GC columns. Column A has a peak width of 20 sec and column B has a peak width of 2 sec. What is the ratio of peak heights on columns A to B, and how does this affect the ability to detect small amounts of substance on these columns?

3) Name three other types of chromatography.

4) Name two safety hazards associated with this lab.






5) Give examples of a random and a systematic error that may have occurred in this lab.