An exemplary chromatogram of volatile compounds in headspace of the cancer cells CALU-1. 200 ml of headspace from cells cultured in 100 ml medium were collected on a sorption trap filled with Tenax TA, Carboxen 569, Carboxen 1000 and subsequently thermal desorbed into the GC-MS system. The peaks that correspond to compounds discussed in this paper are labeled with letters (see Table 1). Peaks exceeding the range of scale are cut off.
Filipiak et al. Cancer Cell International 2008 8:17 doi:10.1186/1475-2867-8-17