# (a) Interpretation: Average number of plates should be calculated. Concept introduction: Number of theoretical plates is given by following equation: N = 16 ( t R W ) 2 N = number of plates t R = retention time W = width of peak base Average = N A + N B + N C + N D 4

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

#### Solutions

Chapter 26, Problem 26.18QAP
Interpretation Introduction

## (a)Interpretation:Average number of plates should be calculated.Concept introduction:Number of theoretical plates is given by following equation:N = 16(tRW)2N = number of platestR = retention timeW = width of peak baseAverage = NA+NB+NC+ND4

Interpretation Introduction

### (b)Interpretation:Standard deviation for the N should be calculated.Concept introduction:Standard deviation will give how the values deviate from mean value of N.

Interpretation Introduction

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