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When you analyze Red-40 (a certified food dye) in a cough syrup, a six-point direct calibration curve produced by plotting the absorbance of Red-40 vs. the concentration of Red-40 in ppb yielded a linear regression y=23.45x+0.435 where x is the concentration of Red-40 in ppb. If the limit of detection was found to be 0.120 ppb, what would be the limit of quantitation? A. 0.400 ppb В. 1.20 ppb C. 0.012 ppb D. Not enough information is provided

When you analyze Red-40 (a certified food dye) in a cough syrup, a six-point direct calibration curve produced by plotting the absorbance of Red-40 vs. the concentration of Red-40 in ppb yielded a linear regression y=23.45x+0.435 where x is the concentration of Red-40 in ppb. If the limit of detection was found to be 0.120 ppb, what would be the limit of quantitation? A. 0.400 ppb В. 1.20 ppb C. 0.012 ppb D. Not enough information is provided

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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When you analyze Red-40 (a certified food dye) in a cough syrup, a six-point direct calibration curve produced by plotting the absorbance of Red-40 vs. the concentration of Red-40 in ppb yielded a linear regression y=23.45x+0.435 where x is the concentration of Red-40 in ppb. If the limit of detection was found to be 0.120 ppb, what would be the limit of quantitation? А. О.400 рpb В. 1.20 рpb C. 0.012 ppb D. Not enough information is provided
Transcribed Image Text:When you analyze Red-40 (a certified food dye) in a cough syrup, a six-point direct calibration curve produced by plotting the absorbance of Red-40 vs. the concentration of Red-40 in ppb yielded a linear regression y=23.45x+0.435 where x is the concentration of Red-40 in ppb. If the limit of detection was found to be 0.120 ppb, what would be the limit of quantitation? А. О.400 рpb В. 1.20 рpb C. 0.012 ppb D. Not enough information is provided
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