Why was this study done? 

Determining the quality and quantity of active ingredients in raw materials is important for supplement manufacturing. This study was designed to understand the best method of determining Coenzyme Q10 content in raw materials and finished products.

What did the study find?

The findings of the study suggest that high-performance liquid chromatographic (HPLC)-UV is the method recommended by Official First Action for determination of CoQ10 in raw materials and dietary supplement finished products containing CoQ10.

Determination of coenzyme Q10 content in raw materials and dietary supplements by high-performance liquid chromatography-UV: collaborative study.
Authors: Lunetta S, Roman M. J AOAC Int. 2008 Jul-Aug;91(4):702-8.
PubMed Citation PMID: 18727527.
HTML Manuscript: J AOAC Int, 2008.