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Table 5-5 Comparison of emanations present on the skin on consecutive days from 

 a single human subject. Bio-assays conducted on those days showed 12% and 24% 

 attraction of mosquitoes in an olfactometer. An increase in the table reflects a 

 compound found to be present in a greater relative amount on the second day (24% 

 attraction) with respect to the previous day (12% attraction). A significant change 

 reflects a relative difference by a factor of 5 or greater between days. A slight 

 change refers to compounds with a relative difference of a factor range of 2-5. 



Compound Remarks 



Compounds significantly increased on more attractive day: 



Pentadecanoic acid 



Methylpentadecanoic acid A 



Hexadecanoic acid 



l-hepten-3-ol B 



Compounds slightly increased on more attractive day 



9-octadecenoic acid 



4-hexen-l-ol B 



2,4-nonadienal 



Butanamine A 



Nonene 



Menthane A 



Tricosane 



13-methylpentadecanoic acid, Methyl ester 



Methylhexadecanoic acid, Methyl ester A 



Compounds significantly decreased on more attractive day 



Benzoic acid, substituted A 



Heptadienal A 



2-methyl-l-heptene 



Nonane, branched A 



1-chlorohexane A 



1-chlorononane 



Pyridine 



Urea 



