Yesterday in the morning, I did a bit more research into how the plasma torch works, as well as the rest of the spectrometer. I gave my presentation on the work that we will be doing, and I also listened to what everyone else is up to. Then, in the afternoon, I worked on preparing a new set of samples to test in the spectrometer. This set should help me understand where some of the uncertainty is coming from. I am going to run two more series, which include some points from the calibrations. This should give us some idea if the calibration method is affecting the results. I am also going to prepare the samples using two different pipette methods, which will test another variable. Hopefully this will give us some idea where the uncertainty is coming from.