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 or high concentrations of compounds in general. In addition, the response of 

 mosquitoes to a stimuli is not an immediate process, such as the detection of column 

 eluents by a mass spectrometer. One way to achieve immediate mosquito response 

 would be to conduct on-line tests with mosquito antennae. This requires a 

 knowledge of mosquito antennae such that specific receptors can be correlated to 

 give responses to specific stimuli. On-line mass spectrometry, with for example, a 

 column spHt, could be used to identify the compound eliciting a response. 



In summary, work conducted in the future in any of the aforementioned areas 

 will provide knowledge that may identify the attractant(s) that have eluded 

 identification thus far; at the least, this information will move humankind one step 

 closer to the answer. Care should be taken with respect to the sampling method 

 such that it answers the question that is being asked. Knowledge of discriminatory 

 effects of the sampling and detection method is of importance. One final issue, 

 applicable to all analyses conducted, is washing of the skin prior to handling beads 

 of sampling of the hand in a Tedlar bag. This methodology should be examined with 

 respect to solvents and time required to allow the skin to dry and additional 

 emanations to concentrate on the skin. Handling of objects should be restricted after 

 washings and until the sample collection procedure is completed. 



