Polyvinylpolypyrrolidone is used as excipient. It has a wide range of applications. In connection with the Reflectoquant®- systems it is applicable in the beverage industry.

In the case of some colored samples, it may be necessary to decolorize the solution with polyvinylpolypyrrolidone prior to the measurement, at the same time leaving the constituent of the product under analysis unchanged. The volume, type, and application time of the Divergan® product have a major effect on the decolorization process, meaning that the dose of Divergan® must be carefully adjusted to the analyte under investigation.