The following are relative peak areas for chromatograms of standard solutions of methyl vinyl ketone (MVK).
MVK concentration, mmol/L | Relative Peak Area |
0.5 | 3.76 |
1.5 | 9.16 |
2.5 | 15.03 |
3.5 | 20.42 |
4.5 | 25.33 |
5.5 | 31.97 |
(a) Determine the coefficients of the best fit line using the least-squares method.
(b) Construct an ANOVA table.
(c) Plot the least-squares line as well as the experimental points.
(d) A sample containing MVK yielded relative peak area of 12.9. Calculate the concentration of MVK in the solution.
(e) Assume that the result in (d) represents a single measurement as well as the mean of four measurements. Calculate the respective absolute and relative standard deviations for the two cases.
(f) Repeat the calculations in (d) and (e) for a sample that gave a peak area of 21.3.
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