The following results were obtained from an analysis of copper content in four representative samples using flame atomic absorption spectroscopy. Suppose the true value is environmental 5.10 ppb. Sample 1 2 3 4 Cu content (ppb) 5.34 5.37 5.44 5.22 (ii) Calculate the standard deviation and relative standard deviation of the analysis.
The following results were obtained from an analysis of copper content in four representative samples using flame atomic absorption spectroscopy. Suppose the true value is environmental 5.10 ppb. Sample 1 2 3 4 Cu content (ppb) 5.34 5.37 5.44 5.22 (ii) Calculate the standard deviation and relative standard deviation of the analysis.
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
ChapterA1: Evaluation Of Analytical Data
Section: Chapter Questions
Problem A1.8QAP
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