The following data was obtained for an experiment on the gas chromatographic determination of toluene in an unknown sample using the internal standard method. Concentration (mass %) Toluene Peak Area Ethylbenzene Peak Area 0.50 0.539 1.970 1.00 1.150 2.051 2.00 2.174 2.018 3.00 3.308 2.009 unknown 1.382 2.015 a) Plot the calibration curve for this analysis and calculate the slope, y-intercept, and Pearson correlation coefficient. b) Find the % of toluene in the unknown.
The following data was obtained for an experiment on the gas chromatographic determination of toluene in an unknown sample using the internal standard method. Concentration (mass %) Toluene Peak Area Ethylbenzene Peak Area 0.50 0.539 1.970 1.00 1.150 2.051 2.00 2.174 2.018 3.00 3.308 2.009 unknown 1.382 2.015 a) Plot the calibration curve for this analysis and calculate the slope, y-intercept, and Pearson correlation coefficient. b) Find the % of toluene in the unknown.
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter26: An Introduction To Chromatographic Separations
Section: Chapter Questions
Problem 26.14QAP
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