Science

ChemistryPrinciples of Instrumental Analysis(a) Interpretation: A standard-addition plot should be created using the data given. Concept introduction: A commonform of standard-addition method involves adding known amounts of a standard solution to sample aliquots containing a fixed volume. Measurements taken for each solution can be used to plot a standard-addition plot.Start your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 1, Problem 1.11QAP

Interpretation Introduction

**(a)**

**Interpretation:**

A standard-addition plot should be created using the data given.

**Concept introduction:**

A commonform of standard-addition method involves adding known amounts of a standard solution to sample aliquots containing a fixed volume. Measurements taken for each solution can be used to plot a standard-addition plot.

Interpretation Introduction

**(b)**

**Interpretation:**

Using the standard-addition plot constructed, the concentration of the unknown phenobarbital sample should be determined.

**Concept introduction:**

In a standard-addition plot, the graph can be extrapolated to obtain thevolume of standard reagentequivalent to the amount of analyte in the sample (

Where,