CHEM 2121 Lecture Notes - Lupercalia, Dete, Seed
Document Summary
Standard addition: helps us disregard matrix effect b/c all done in the same matrix. Go back to the expression we were using. Ix+s = ixf + (ixf/[x])[s]f --> y = mx + b x-int = -b/m. Ixf/(ixf/[x]f) = -[x]f --> thus, you can extrapolate back to find x intercept. Before show up to lab, put purpose in lab notebook, just put important procedure steps (don"t need to rewrite lab manual), data analysis procedure. Data collection: have units, make table subheadings meaningful (don"t just say reading, put units) Can paste table in notebook (don"t have to draw by hand) Discussion: restate the main finding; talk about error in experiment (how large/small error is), give potential sources of error. Conclusion: restate main results, state what you might do differently in future experiments. Linear regression: linest (might be the best one) This is what we get out of linestwe get it as an array.
