tras12. A standard stock solution is diluted to generate three working standard solutions containing ethylacetate (EA) at 50 ppm, 400 ppm, and 800 ppm. An internal standard, n-butanol (nB), is added so itsconcentration is 1500 ppm in each of the working standard solutions. The solutions are analyzed using GC-FID.The peak area data for the peak corresponding to ethyl acetate from the standard chromatograms50 ppm (EA area = 5.05, nB area = 124.37)400 ppm (EA area = 47.98, nB area = 125.31)800 ppm (EA area = 98.21, nB area =98.21, nBarea =130.63)The results for the linear regression analysis for the data set using Excel are:m = 0.7065, b = 0.002134m = 1.4251, b = -0.003901m = 1.4215, b = -0.003091m = 0.7015, b = 0.002231

Given: Concentration of Analyte (Ethyl Acetate) = 50 ppm, 400 ppm, 800 ppm Concentration of Internal Standard (n-butanol) =1500 ppm Area of Analyte (Ethyl Acetate) = 5.05, 47.98, 98.21 Area of Internal Standard (n-butanol) = 124.37, 125.31, 130.63 To determine: The results for linear regression analysis for the data set using excel(Area of Analyte SignalArea of Standard signal) =F (Concentration of AnalyteConcentration of Standard) Here, the Analyte is Ethyl Acetate Internal standard is n-Butanol. Plot of Area of analyteArea of standard vs [Analyte][Standard] will be a Straight-line curve Plot of Area of analyteArea of standard vs [Analyte][Standard] The result of linear regression analysis for the data set using Excel is: y=1.4215x -0.0031 This implies, m= 1.4215, b= -0.003091

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A standard stock solution is diluted to generate three working standard solutions containing ethyl tate (EA) at 50 ppm, 400 ppm, and 800 ppm. An internal standard, n-butanol (nB), is added so its centration is 1500 ppm in each of the working standard solutions. The solutions are analyzed using G

A standard stock solution is diluted to generate three working standard solutions containing ethyl tate (EA) at 50 ppm, 400 ppm, and 800 ppm. An internal standard, n-butanol (nB), is added so its centration is 1500 ppm in each of the working standard solutions. The solutions are analyzed using G

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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

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Question

tras
12. A standard stock solution is diluted to generate three working standard solutions containing ethyl
acetate (EA) at 50 ppm, 400 ppm, and 800 ppm. An internal standard, n-butanol (nB), is added so its
concentration is 1500 ppm in each of the working standard solutions. The solutions are analyzed using GC-
FID.
The peak area data for the peak corresponding to ethyl acetate from the standard chromatograms
50 ppm (EA area = 5.05, nB area = 124.37)
400 ppm (EA area = 47.98, nB area = 125.31)
800 ppm (EA area = 98.21, nB area =
98.21, nB
area =
130.63)
The results for the linear regression analysis for the data set using Excel are:
m = 0.7065, b = 0.002134
m = 1.4251, b = -0.003901
m = 1.4215, b = -0.003091
m = 0.7015, b = 0.002231

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