Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter A1, Problem A1.20QAP
Interpretation Introduction
Interpretation:
The pH meter of range 2-12 can read standard deviation of
Concept introduction:
The following formula will be used for the calculation of the standard deviation in terms of antilogarithm-
Where,
Or,
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A method for the detection of morphine is used to generate a calibration curve in which the assay response (y) is plotted versus morphine concentration (x, in mg/L). This gives a straight line with a slope (m) of 0.241 and a y-intercept (b) of 0.011, where y = mx + b. The slope of this line has a standard deviation of ±0.007, and the standard deviation of the intercept is ±0.006. If the sample from an athlete gives a response of 0.506 ± 0.013 in this method, what is the concentration of morphine in the sample and estimated precision of this concentration?
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Standard #
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in mg/mL
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in mL
1
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0.000
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Chapter A1 Solutions
Principles of Instrumental Analysis
Ch. A1 - Prob. A1.1QAPCh. A1 - Prob. A1.2QAPCh. A1 - Prob. A1.3QAPCh. A1 - Prob. A1.4QAPCh. A1 - Prob. A1.5QAPCh. A1 - Prob. A1.6QAPCh. A1 - Prob. A1.7QAPCh. A1 - Prob. A1.8QAPCh. A1 - Prob. A1.9QAPCh. A1 - Prob. A1.10QAP
Ch. A1 - Prob. A1.11QAPCh. A1 - Prob. A1.12QAPCh. A1 - Prob. A1.13QAPCh. A1 - Prob. A1.14QAPCh. A1 - Prob. A1.15QAPCh. A1 - Prob. A1.16QAPCh. A1 - Prob. A1.17QAPCh. A1 - Prob. A1.18QAPCh. A1 - Prob. A1.19QAPCh. A1 - Prob. A1.20QAPCh. A1 - Prob. A1.21QAPCh. A1 - Prob. A1.22QAPCh. A1 - Prob. A1.23QAPCh. A1 - Prob. A1.24QAP
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