Number of lines of IR grating is 90 lines per millimeter and the illumination of this grating occurs at 15.0 mm. First order resolution of this IR grating needs to be calculated and the distance between the two resolved lines is to be determined when they are centered at 1200 cm-1. Concept introduction: Formula for the resolving power of grating is as follows: resolving power = λ Δ λ = n N Calculation of distance between two resolved lines can be done using the following formula: λ = 1 v ¯

BuyFind

Principles of Instrumental Analysis

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

Principles of Instrumental Analysis

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

Solutions

Chapter 7, Problem 7.13QAP
Interpretation Introduction

Interpretation:

Number of lines of IR grating is 90 lines per millimeter and the illumination of this grating occurs at 15.0 mm. First order resolution of this IR grating needs to be calculated and the distance between the two resolved lines is to be determined when they are centered at 1200 cm-1.

Concept introduction:

Formula for the resolving power of grating is as follows:

resolving power=λΔλ=nN

Calculation of distance between two resolved lines can be done using the following formula:

λ=1v¯

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