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4. The following calibration data were obtained by an instrumental method for the determination of the species X in aqueous solution. Concentration X, Cx No. Replications, Mean Analytical Standard Deviation, ppm 0.00 Signal, S 0.031 ppm 0.0079 25 2.00 0.173 0.0094 6.00 5 0.422 0.0084 10.00 5 0.702 0.0084 14.00 5 0.956 0.0085 18.00 5 1.248 0.0110

4. The following calibration data were obtained by an instrumental method for the determination of the species X in aqueous solution. Concentration X, Cx No. Replications, Mean Analytical Standard Deviation, ppm 0.00 Signal, S 0.031 ppm 0.0079 25 2.00 0.173 0.0094 6.00 5 0.422 0.0084 10.00 5 0.702 0.0084 14.00 5 0.956 0.0085 18.00 5 1.248 0.0110

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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4. The following calibration data were obtained by an instrumental method for the determination of the species X in aqueous solution. Mean Analytical Signal, S Concentration X, Cx No. Replications, Standard Deviation, ppm 0.00 ppm 0.0079 25 0.031 2.00 5 0.173 0.0094 6.00 5 0.422 0.0084 10.00 5 0.702 0.0084 14.00 5 0.956 0.0085 18.00 1.248 0.0110 a. Calculate the calibration sensitivity. b. Calculate the analytical sensitivity at each concentration. c. Calculate the coefficient of variation for the mean for each of the replicate. d. What is the detection limit for the method?
Transcribed Image Text:4. The following calibration data were obtained by an instrumental method for the determination of the species X in aqueous solution. Mean Analytical Signal, S Concentration X, Cx No. Replications, Standard Deviation, ppm 0.00 ppm 0.0079 25 0.031 2.00 5 0.173 0.0094 6.00 5 0.422 0.0084 10.00 5 0.702 0.0084 14.00 5 0.956 0.0085 18.00 1.248 0.0110 a. Calculate the calibration sensitivity. b. Calculate the analytical sensitivity at each concentration. c. Calculate the coefficient of variation for the mean for each of the replicate. d. What is the detection limit for the method?
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 d. What is the detection limit for the method?

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