Although the samples reported in this paper were adsorbed at room temperature, samples can be heated to increase the concentration of volatiles in the headspace region. For example, Yang, et al . This laboratory experiment presents an opportunity for students to use a relatively new, simple, yet rapid, solventless technique to extract volatile fragrance and flavor components from the headspace region of samples. A typical experiment involving SPME requires minimal sample preparation and analysis times are under 30 min. Multiple analyses can be performed within the time span allotted for a typical laboratory class period.
Students can be creative in choosing samples of personal interest.
SPME offers a relatively inexpensive way to analyze fairly complex samples such as shampoos and chewing gums that might otherwise be difficult to analyze by conventional headspace analysis. Literature Cited 1. Food Chem .