1. What are the characteristics of a sample that would be ideal for SFE? For SFC?
2. In what ways do HPLC and SFC resemble one another? How do they differ? Discuss differences in instrumentation, samples, and so on.
3. Drugs of abuse have been shown to accumulate in the user's urine and hair. Could SFC be employed to analyze either or both biological samples? If SFC could be used, how would one handle the sample(s)?
4. What properties of carbon dioxide make it the most suitable compound for use in SFE and SFC?