1) Consider the data in the table below for chromatograms collected on different lengths of gas chromatography columns. Answer the following questions using Excel. L = 15 m L = 30 m L = 60 m Species tR (min) W1/2 (min) 4R (min) W1/2 (min) tR (min) W1/2 (min) 1 1.290 0.016 2.581 0.023 5.147 0.031 2 1.309 0.016 2.616 0.023 5.222 0.032 3 1.332 0.017 2.664 0.024 5.325 0.034 4 1.401 0.018 2.804 0.025 5.616 0.036 a. Calculate both the average number of plates and the average plate height (in µm) for each column, considering all four species. b. Calculate the measured resolution between peaks 1 and 2, 2 and 3, and 3 and 4 for each column.

1) Consider the data in the table below for chromatograms collected on different lengths of gas chromatography columns. Answer the following questions using Excel. L = 15 m L = 30 m L = 60 m Species tR (min) W1/2 (min) 4R (min) W1/2 (min) tR (min) W1/2 (min) 1 1.290 0.016 2.581 0.023 5.147 0.031 2 1.309 0.016 2.616 0.023 5.222 0.032 3 1.332 0.017 2.664 0.024 5.325 0.034 4 1.401 0.018 2.804 0.025 5.616 0.036 a. Calculate both the average number of plates and the average plate height (in µm) for each column, considering all four species. b. Calculate the measured resolution between peaks 1 and 2, 2 and 3, and 3 and 4 for each column.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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