1. Agilent technologies introduces transportable GC/MS for High-Performance, Out-of-laboratory analysis. http://www.agilent.com/about/newsroom/presrel/2010/01mar-ca10015.html Accessed 1 June 2012
2. Anastas PT (1998) Green chemistry. Theory and practice. Oxford University Press, New York
3. Baltussen E, Davod F et al (1998) Soprtion tubes packed with polydimethylsiloxane: A new and promising technique for the preconcentration of the volatiles and semi-volatiles from air and gaseous samples. J High Resol Chromatogr.21:332–340
4. Bartram RJ, Froehlich P (2010) Considerations on switching from Helium to Hydrogen http://www.labgasgenerators.com/Docs/Articles/LCGC1010_He_to_Hydrogen_Article.pdf. Accessed 1 June 2012
5. Choong Y-M, Lin H-J et al (1999) A rapid gas chromatographic method for direct determination of free sterols in animal and vegetable fats and oils. J Food Drug Anal 7:279–290