Abstract
Low concentration of volatile organic components (VOC) usually need to be condensed before analyzing them by using gas chromatography (GC). NeedlExTM is a needle for condensing VOC. Gas components are adsorbed and condensed efficiently while passing through the adsorbents in the needle. This paper describes the results of analysis of tear gas agents or chloropicrin by using NeedlExTM. Allyl isothiocyanate (AITC), Chloroacetophenone (CN), o-Chlorobenzylidene malononitrile (CS), α-Brombenzyl cyanide (CA) or Chloropicrine (CP) in 10 L Tedler® bag were condensed with NeedlExTM and analyzed by GC. NeedlExTM had a tendency to condense the components having lower boiling point easily than those having a higher boiling point.
