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 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) or 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 ug/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?
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 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) or 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 ug/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?
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter1: Introduction
Section: Chapter Questions
Problem 1.10QAP
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