Our water analysis testing has been a challenge for us, but after consulting various sources (especially Tamara Risser from Maine), doing trial testing, getting new Coliscan and purchasing some simple yet useful equipment we are back on track. While the Maine group was here in February we discovered that the tweezers were causing some cross contamination. Therefore we purchased a mechero so we can flame our tweezers in between each sample. In addition we will clean our equipment with alcohol wipes before beginning analysis to insure that there is no residual contamination from the previous tests. Also, we will perform control samples with purified water before and after each testing seesion to make sure our procedures are working.
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