text: The most popular methods rely on adsorbing floral VOCs on an adsorbent material such as SPME fibers or cartridges by pumping air sampled around inflorescences through the adsorbent material.
  It is also possible to extract chemicals stocked in petals by immersing them in a solvent and then analyze the liquid residue. This is more adapted to the study of heavier organic compounds, and/or VOCs that are stored in floral tissue before being emitted into air.