The phenomenon of temperature programming in GC and the reason for it’s frequent use is to be stated. Concept introduction: In the temperature programming method, the temperature of the column is continuously raised at a predefined rate which varies as function of time. This technique is commonly used for the analysis of mixtures with a wide range of boiling points.

Question

For the photochemical halogenation reaction below, draw both propagation steps and include the mechanism arrows for each step. H CH ot CH3 CI-CI MM hv of CH H-CI CH3 2nd attempt See Periodic Table See Hint Draw only radical electrons; do not add lone pair electrons. Note that arrows cannot meet in "space," and must end at either bonds or at atoms. 1 i Add the missing curved arrow notation to this propagation step. 20 H ن S F P H CI Br 品

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Question

Chapter 27, Problem 27.3QAP

Interpretation Introduction

Interpretation:

The phenomenon of temperature programming in GC and the reason for it’s frequent use is to be stated.

Concept introduction:

In the temperature programming method, the temperature of the column is continuously raised at a predefined rate which varies as function of time. This technique is commonly used for the analysis of mixtures with a wide range of boiling points.

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