Fig. 2
From: Unintended VOC emissions from cotton and viscose pads complicate olfactory experiments
Normalized responses of four representative compound subsets, illustrating the effect of added water on VOC release from cotton, viscose, and polyester sweat pads under the experimental conditions. The x-axis shows the volume of water added, while the left y-axis displays \(\log _{10}\)-transformed, normalized peak volumes measured via DHS-GC\(\times\)GC-Q-TOF. The right y-axis indicates estimated VOC amounts (ng), calculated relative to the peak volume of \(d_5\)-chlorobenzene used as an internal standard. (A) Cotton pads with DHS extraction at 60 °C. (B) Viscose and polyester composite pads with DHS extraction at 60 °C. (C) Effect of thermal pretreatment on cotton pads. (D) Effect of thermal pretreatment on viscose/polyester pads.
