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4. On a GC column with L= 30 m, a reference sample elutes in 13.1 min with w1/2 = 15 sec. What is the number of theoretical plates? What is the plate height?

4. On a GC column with L= 30 m, a reference sample elutes in 13.1 min with w1/2 = 15 sec. What is the number of theoretical plates? What is the plate height?

Chemistry
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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Chemistry 3. A sample of toluene in injected on a capillary column with an ID of 250 microns and a nonpolar stationary phase. The toluene elutes with a retention time of 358 second. An unretained reference material injected on the same column has a retention time tm of 38 seconds. The partition coefficient K for toluene with this stationary phase is 337. Calculate the film thickness of the stationary phase in the column. 4. On a GC column with L= 30 m, a reference sample elutes in 13.1 min with w1/2 = 15 sec. What is the number of theoretical plates? What is the plate height?
Transcribed Image Text:Chemistry 3. A sample of toluene in injected on a capillary column with an ID of 250 microns and a nonpolar stationary phase. The toluene elutes with a retention time of 358 second. An unretained reference material injected on the same column has a retention time tm of 38 seconds. The partition coefficient K for toluene with this stationary phase is 337. Calculate the film thickness of the stationary phase in the column. 4. On a GC column with L= 30 m, a reference sample elutes in 13.1 min with w1/2 = 15 sec. What is the number of theoretical plates? What is the plate height?
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