We are testing 2H enrichment in wild mosquitoes in West Africa as a method to label mosquitoes for life.

So far we have been using desiccated mosquito samples for our analysis, collected alive and kept over silica gel for 2-4 weeks before IRMS (very dry…).

A question arose regarding testing samples that were trapped elsewhere and preserved in 80% EtOH.

Does anyone have an idea if ethanol preservation alters 2H ratios?




Roy Faiman, Ph.D

Visiting Fellow

Laboratory of Malaria and Vector Research

NIAID, National Institutes of Health

12735 Twinbrook Parkway, 2W-09C

Rockville, MD 20852 USA