Photo, thermal and chemical degradation of riboflavin

Photo, thermal and chemical degradation of riboflavin

Riboflavin (RF), also known as vitamin B2, belongs to the class of water-soluble vitamins and is widely present in a variety of food products. It is sensitive to light and high temperature, and therefore, needs a consideration of these factors for its stability in food products and pharmaceutical preparations. A number of other factors have also been identified that affect the stability of RF. ...

Photo- and Thermal Degradation of Piroxicam in Aqueous Solution

Light and temperature have considerable effect on the degradation of piroxicam in aqueous solutions. The pH and acetate buffer ions also affect the degradation process. The apparent first-order rate constants for the photochemical and thermal degradation of piroxicam have been determined as 2.04-10.01 and 0.86-3.06×10(-3) min(-1), respectively. The first-order plots for the degradation of pirox...

Photo- and thermal degradation in an arid ecosystem

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Photo-thermal chemical vapour deposition growth of graphene

The growth of graphene on Ni using a photo-thermal chemical vapour deposition (PT-CVD) technique is reported. The non-thermal equilibrium nature of the PT-CVD process resulted in a much shorter duration of the overall growth time for graphene in both the heating up and cooling down stages, thus allowing for the reduction. Despite the reduced time for synthesis compared to standard thermal chemi...

Chemical determination of riboflavin.