Tuesday, March 3, 2009

Week 5 - Saturday

We have a lot of work to do still, especially on the GC and thus we Anna, Adama, and I came in to work from 9 to 3:30.

Anna, Adama, and I spent most of the day updating the calibration table and doing training on the GC. We also now have all compound retention times in the calibration table correctly. While updating, it was clear that a few compounds don't show up on the GC here as well as they do at OSU, especially fipronil, dimethoate, and propanil. These compounds may need to be dropped from the method. A lot of time was lost today because of a software glitch with Chemstation. The calibration table would not communicate correctly with it's own software and had to be rebuilt a few times. It was good practice for the staff, but a set back nonetheless.

We prepared the 1st retrieval samples to be run on the GC over Saturday night and Sunday. Adama brought the samples up to volume, I transferred them to the GC vials at 1 mL, and Anna administered the I.S. spike. One sample was compromised as a result of a bad spike, but the samples were analyzed in duplicate.

No comments: