Figure 3
From: Release of volatile organic compounds (VOCs) from the lung cancer cell line CALU-1 in vitro
Comparison of VOCs present at lower concentrations present in the headspace of cells in culture (CALU-1) (bright blue and dark blue columns) as compared to medium control (yellow and red columns) after 4 h and 18 h of incubation. Presented are average concentrations (n = 4 for 4 h of incubation, n = 3 for 18 h of incubation) with standard deviations. Significant differences are labeled with asterisks.