An email to the heat sealer company asking about repair or local service resulted in a referral to a southern California distributor.
Met Hama Garba today and we discussed the training progress.
Preparation for the field deployment continues with construction of the field LFTs. The lab staff are increasing the quality and consistency of the PSDs as well as the pace of production. They currently make 20 spiked PSDs per hour; the deployment requires 45. The spiking solution is 100uL of 1 ppm aldrin in ethyl acetate. This concentration should be easily detected even with significant loss in the field or poor extractions, high background, etc. All the PSD are completed for the deployment, we only need a few more cages.
Some good fortune: A chemical distributor cold called today and Cheikh tells me they have plenty of hexanes. Initially, there was some question as to whether hexanes would be readily available so this helps.
I've included a couple of photos of the LFT construction for the field. Note the location of the preparation blank on the frame. This serves two purposes: it keeps the blank near the production location but out of the way, and ensures that all the LFT are the same length.
Preparing PSD for field deployment.Front to back: Emmanuel, Adama, Cheikh
Spiking the PSD with a PRC.Marie
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