Tuesday, March 3, 2009

Week 5 - Friday

The results from the GC run overnight shows that there is little difference between using centrifuge tubes marked at 1 and 2 ml and using an automated pipet for 1 mL. The key is being accurate with the marks on the centrifuge tubes. Given this information we prepared standards for the calibration table with internal standards (Adama pipeting each composite standard dilution and me introducing the internal standard). These ran over night.

We also performed a dialysis of the 2nd retrieval samples and some of the QC. I will be taking some QC samples (1 trip blank, 1 field exposure blank, 1 lab cleaning blank) back with me to OSU. I observed the dialysis and corrected technique where needed but for the most part did not physically help. The staff's technique had improved since the 1st retrieval's samples were processed. (Adama, Anna, Vieux, and Marie were present)

No comments: