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postlab2answers - Post-Lab Questions 1. What were the...

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Post-Lab Questions 1. What were the resolving powers observed for 8 intense ions in the PPG calibration data? What does this imply about the resolving power of the instrument as a function of m/z? (hint: choose ions across the entire mass range, perhaps make a plot of RP vs. m/z) 10 points, there should be a plot of resolving power as a function of mass accuracy. At least one calculation of resolving power should be included. Comments should be made about the plot based on the student’s data. 2. How did the mass accuracy of the externally calibrated data drift as the time after calibration increased? 5 points, again, a plot of mass accuracy in ppm as a function of time might also be helpful. Comments should be made on the appearance of the plot and any trends that can be drawn from it. 3. What was the effect of changing LockSpray ions when interpreting the internally calibrated data for sertraline? Which ion did you decide on using for the rest of your experiments? 10 points, show error calculation for each Lockspray ion and then
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postlab2answers - Post-Lab Questions 1. What were the...

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