FOLLOW UP QUESTION: Answer #4 onlyQuality Assurance and Calibration MethodsLink to previous answers:https://www.bartleby.com/questions-and-answers/a-0.2422-g-sample-of-a-certain-fruit-was-analyzed-for-the-content-of-a-certain-pesticide.-after-a-se/73201da3-a435-470d-af44-bbdc3d361b00 A 0.2422 g sample of a certain fruit was analyzed for the content of a certain pesticide. After a series ofextraction steps, the final extract obtained was diluted to 10.00 mL, which was then subjected tochromatographic analysis. Four standard solutions of the pesticide were also prepared, processed, andanalyzed in the same manner. The data obtained are shown in the table below.Concentration (µg/mL)Peak AreaSolutionStandard 10.01234.2Standard 20.051101.2Standard 30.102300.1Standard 40.204999.8Sample?1654.3 1. What's the slope of the calibration curve?3.95 x 10-54.17x10-512048425257What's the y-intercept value?-114.3-0.013700.00471583.13. What's the concentration of the analyte in the sample solution?2.39x10-8 µg/mL0.070 µg/mL0.052 µg/mL3.97 x 107 µg/mL4.19x10² µg/mL4. What is the concentration of the pesticide in the sample (ppm)?0.52 ppm0.70 ppm0.99 ppm2.2 ppm2.9 ppm

The linear regression equation of the calibration curve is: Y = 25257X - 114.32

1. What's the slope of the calibration curve? 3.95 x 10-5 4.17x10-5 1 20484 25257 2. What's the y-intercept value? -114.3 -0.0137 0 0.00471 583.1 3. What's the concentration of the analyte in the sample solution? 2.39x10-8 μg/mL 0.070 µg/mL 0.052 µg/mL 3.97X107 µg/mL 4.19×10² µg/mL What is the concentration of the pesticide in the sample (ppm)? 0.52 ppm 0.70 ppm 0.99 ppm 2.2 ppm 2.9 ppm

1. What's the slope of the calibration curve? 3.95 x 10-5 4.17x10-5 1 20484 25257 2. What's the y-intercept value? -114.3 -0.0137 0 0.00471 583.1 3. What's the concentration of the analyte in the sample solution? 2.39x10-8 μg/mL 0.070 µg/mL 0.052 µg/mL 3.97X107 µg/mL 4.19×10² µg/mL What is the concentration of the pesticide in the sample (ppm)? 0.52 ppm 0.70 ppm 0.99 ppm 2.2 ppm 2.9 ppm

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter16: Applications Of Neutralization Titrations

Section: Chapter Questions

Problem 16.10QAP

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