Analytical Applications of DART

Finally, the analysis of nonpolar confounds such as steroids and hydrocarbons makes DART a very strong competitor for DAPPI [69]. 

Example Still under the impression of the 2001 terrorist attack on the World Trade Center, ambient MS initially had a strong focus on the detection of explosives. Negative-ion DART is very sensitive for the analysis of explosives exhibiting extremely low but non-zero vapor pressure [58]. Nitroglycerin has been detected on a man s necktie 8 h after exposure to the plume from blasting at a construction site (Fig. 13.20a) and various explosives present at about 3 ppm in a contaminated pond water sample have been detected placing a small open bottle with 0.1% aqueous trifluoroacetic acid (H-TFA) in proximity to the sanpling zone caused them to appear as [M+TFA] adduct peaks in the DART spectrum (Fig. 13.20b) [2]. 

Example DART allows for the cuticular hydrocarbon analysis of active fruit flies Sophophora melanogaster (Drosophila melanogaster). The hydrocarbon profile as measured from the exterior of female flies comprises alkenes and alkadienes in the Cis to C29 range that are detected as [M+H] ions. The profile has been 

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