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A quality control (QC) sample was run in replicates of six to produce the following concentrations values: 12.2, 11.6, 11.9, 12.3, 12.8, and 11.7 ug/L. Is this level of analytical method precision acceptable for this group of QC replicates? O 3.3%, YES O 3.3%, NO O 5.5%, YES O 5.5% NO

A quality control (QC) sample was run in replicates of six to produce the following concentrations values: 12.2, 11.6, 11.9, 12.3, 12.8, and 11.7 ug/L. Is this level of analytical method precision acceptable for this group of QC replicates? O 3.3%, YES O 3.3%, NO O 5.5%, YES O 5.5% NO

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Determine the correct answer for the following question: A quality control (QC) sample was run in replicates of six to produce the following concentrations values: 12.2, 11.6, 11.9, 12.3, 12.8, and 11.7 ug/L. Is this level of analytical method precision acceptable for this group of QC replicates? O 3.3%, YES O 3.3%, NO O 5.5%, YES 5.5% NO Question 9 Determine the correct answer for the following question: One definition of analytical method accuracy in a GLP laboratory is ±20 percent relative error (RE) of the measured mean sample concentration to that of the true concentration such that %re = [(Measured Mean Concentration - True Concentration)/True Concentration] x 100 A single quality control (QC) sample was prepared at a concentration of 12.5 µg/L and run in replicates of six to produce the following concentrations values: 12.5, 11.9, 14.2, 12.2, 13.7, and 14.1 ug/L. Is this level of analytical method accuracy acceptable for this QC sample?
Transcribed Image Text:Determine the correct answer for the following question: A quality control (QC) sample was run in replicates of six to produce the following concentrations values: 12.2, 11.6, 11.9, 12.3, 12.8, and 11.7 ug/L. Is this level of analytical method precision acceptable for this group of QC replicates? O 3.3%, YES O 3.3%, NO O 5.5%, YES 5.5% NO Question 9 Determine the correct answer for the following question: One definition of analytical method accuracy in a GLP laboratory is ±20 percent relative error (RE) of the measured mean sample concentration to that of the true concentration such that %re = [(Measured Mean Concentration - True Concentration)/True Concentration] x 100 A single quality control (QC) sample was prepared at a concentration of 12.5 µg/L and run in replicates of six to produce the following concentrations values: 12.5, 11.9, 14.2, 12.2, 13.7, and 14.1 ug/L. Is this level of analytical method accuracy acceptable for this QC sample?
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