The reason for not using acetone in order to rinse quartz UV cell is to be explained. Concept introduction: A quartz UV cell is a small tubular container having straight edges, with a square or circular cross section. When a quartz UV cell is rinsed with acetone, the acidic or basic residues in the cell, catalyzes aldol condensation of acetone, precipitating ketones , which affects the spectrometric readings. In an aldol condensation reaction, an enolate ion reacts with a carbonyl compound, thus producing β - hydroxy ketone or β - hydroxy aldehyde , followed by dehydration, producing a conjugated enone.

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Chapter 8.4, Problem 3E

Interpretation Introduction

Interpretation: The reason for not using acetone in order to rinse quartz UV cell is to be explained.

Concept introduction: A quartz UV cell is a small tubular container having straight edges, with a square or circular cross section. When a quartz UV cell is rinsed with acetone, the acidic or basic residues in the cell, catalyzes aldol condensation of acetone, precipitating ketones, which affects the spectrometric readings. In an aldol condensation reaction, an enolate ion reacts with a carbonyl compound, thus producing β - hydroxy ketone or β - hydroxy aldehyde, followed by dehydration, producing a conjugated enone.

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