Identification of Gas Emanated from Human Skin: Methane, Ethylene, and Ethane
AnalySci_21_625.pdf 81.4 KB
We investigated whether methane, ethylene and ethane gas can be detected in gas emanating from human skin, which is called skin gas. Skin gas was collected with a homemade stainless-steel trap system, which was cooled with liquid nitrogen, and analyzed with a gas chromatograph fitted with a flame ionization detector (FID). Skin-gas samples were obtained by covering a hand for 30 min with a polyfluorovinyl bag in which pure helium gas was introduced. The bag, the trap system and GC were set up online to avoid any contamination by air. Methane, ethylene and ethane in skin gas were successfully collected at an average amount emanated for 30 min (from ten subjects) of 150 ± 63, 20 ± 11 and 17 ± 8 [mean ± SD] pg/cm2, respectively.
This work was partly supported by the Regional Science Promotion Program, Japan Science and Technology Agency.
|date of issued||
The Japan Society for Analytical Chemistry
2005 © The Japan Society for Analytical Chemistry
Graduate School of Integrated Arts and Sciences
Last 12 months's access : ? times
Last 12 months's DL: ? times
This month's access: ? times
This month's DL: ? times