Saturday, February 14, 2009

Week 3 - Tuesday

Today we (Adama, Marie, Anna, Vieux, and I) spiked LFT and finished their construction for the upcoming field deployment on Thursday.

We (same people) had to do some sanding of the spiders. Some of the edges were sharp and could easily cut through LFT and skin. After this we cleaned the spiders with detergent; soaking and scrubbing them, then thoroughly rinsing them with tap water. We further cleaned the spiders by submersion and agitation in acetone then hexanes and were left to dry. Once dry the spiders were packaged in clean plastic bags.

I installed new liners for the GC inlet, removing some of the glass wool prior to installation. I also changed out the gold seals and snugged up all the column connections. The new liners seem only to make the multiple peak problem worse, especially for the front detector. At the end of the day I cooled and shut down the GC. The recent power failures led to this decision. I did not want the GC turning off hot while we were in the field. (Anna and Adama were present for most of the GC troubleshooting)

We also gathered more materials for the trip to the field.

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