Solve (c) and (d) A graphite furnace atomic absorption spectrophotometer (AAS) was used to determine thearsenic (As) concentrations in drinking water. A large set of blank samples yielded an averageblank signal of 0.015 and a blank standard deviation of 0.0050. The following data wereobtained for a calibration curve.[As] (ppm)2.04.06.08.010.0Absorbance0.150.270.460.550.71Using a spreadsheet on an Excel, create a graph of the data using symbols only for the datapoints. Plot the line on the same graph and include the graph to this question. Answer thefollowing questions.(a). What is the sensitivity of the method?(b). Calculate the LOD and LOQ for As.(c). What is the dynamic range of the method? Hint: it is NOT the entireconcentration range.(d). A sample of water yielded an absorbance of 0.36. What is the concentration ofAs in the water?

Atomic absorption spectroscopy is a quantitative spectroscopic method to determine the concentration…

Answered: (c). What is the dynamic range of the…

(c). What is the dynamic range of the method? Hint: it is NOT the entire concentration range. (d). A sample of water yielded an absorbance of 0.36. What is the concentration of As in the water?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.8QAP

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