Control of Temperature and Stirring

The photoreactions that must occur at controlled, constant temperature can be performed in cells contained in a thermostat. 

The stirring of the solution during the irradiation is strictly recommended, otherwise gradients of concentration can be produced that affect the photochemical process. The stirring may be accomplished by the bubbling of an inert gas or by using a magnetic stirrer. 

Control of temperature and stirring should not interfere with the light beam outside and inside the cell. 

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