Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781337468039
Author: Skoog
Publisher: Cengage
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Chapter A1, Problem A1.5QAP
Interpretation Introduction

Interpretation:

The value of standard deviation to the instrumental technique is 1.0%.The number of replicate measurements is to be determined when the standard error of mean is 0.01%.

Concept introduction:

The following formula will be used for the calculation of the standard error-

sm=sN ........... (1)

Or,

N=(ssm)2

Here,

sm = standard error of the mean

s = standard deviation

N = sample size or called as number of measurements.

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